Physics Lab 202P-4. Understanding Electric Potential NAME: LAB PARTNERS:

Size: px
Start display at page:

Download "Physics Lab 202P-4. Understanding Electric Potential NAME: LAB PARTNERS:"

Transcription

1 Physics Lab 202P-4 Understanding Electric Potential NAME: LAB PARTNERS: LAB SECTION: LAB INSTRUCTOR: DATE: ADDRESS: Penn State University Created by nitin samarth Physics Lab 202P-4 Page 1 of 17

2 Physics Lab 202P-4 Equipment List (all items marked with * are in the student kit, others are supplied at the time of the lab) Equipotential plotting kit (conductive ink pen, coated paper, board, stencil, pushpins) 5V DC power supply Digital voltmeter Probes and hook-up wires Computer Software List EMField Penn State University Created by nitin samarth Physics Lab 202P-4 Page 2 of 17

3 Prelab checkbox: Satisfactory Unsatisfactory Physics Pre-lab 202P-4 Understanding Electric Potential Name: Section: Date: (Read this & answer the questions before coming to lab) Summary of relevant concepts: (a) The ELECTRIC POTENTIAL ENERGY U of a charge at any point in space is defined as the NEGATIVE of the work done BY the electric field E when the charge is moved from infinity to that point. Here, we DEFINE the electric potential at infinity to be 0. Note that this definition is equivalent to saying: "electric potential energy is the work YOU have to do in bringing a charge from infinity to that point." (b) The ELECTRIC POTENTIAL V at any point in space is defined as the negative of the work done by the electric field when a charge of +1 C is brought from infinity to that point i.e. V = A r r E ds (c) We also talk about the POTENTIAL DIFFERENCE between two points A & B: B = r V E r ds i.e. the negative of the work done by the electric field in moving a charge of +1C from A to B. (d) Electric potential and potential difference are measured in VOLTS; electric potential energy is measured in joules. (e) Equipotential surfaces are a convenient way of picturing the electric potential in any region. Most often, equipotential LINES are used to portray a cross-sectional view of equipotential surfaces. By definition, all points on an equipotential line/surface have the same potential. A Penn State University Created by nitin samarth Physics Lab 202P-4 Page 3 of 17

4 Pre-lab Questions: Q1. What is a "conservative force?" (Recall: Physics 201.) Q2. When a mass that is free to move is released in the presence of a gravitational field, does it move from a region of high gravitational potential to a region of low gravitational potential or vice-versa? Q3. When a CHARGE that is free to move is released in the presence of an electric field, does it move from a region of high electric potential to a region of low electric potential or vice-versa? Does your answer depend on whether the charge is positive or negative? Why/why not? Penn State University Created by nitin samarth Physics Lab 202P-4 Page 4 of 17

5 The figure below shows a region of space with a uniform electric field E. You can move charges from A to B along the three different paths shown. ACBD is a square of side L. Q4. Suppose a positive charge +q is moved from A to B. Calculate the work W done by the electric field on the charge, if the charge +q were taken: (a) first from A to C and then from C to B. (b) first from A to D and then from D to B. (a) (b) Penn State University Created by nitin samarth Physics Lab 202P-4 Page 5 of 17

6 Q5. Calculate the work done by the electric field on the charge if the charge were moved along the straight line AB. How does this compare with your answers to Q4? Q6. From your answers to Q4 & Q5, what is the "the potential difference" DV = V B - V A between points A and B? Q7. An equipotential surface is defined as a surface on which there is no potential difference between any of the points. What are the equipotential surfaces for the problem above? Sketch a cross-sectional view of a few equipotential surfaces, showing surfaces with a constant potential difference between them. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 6 of 17

7 Q8. You have already learned that -- under conditions of STATIC EQUILIBRIUM (i.e. no charges are moving) -- the electric field at the surface of any conductor is PERPENDICULAR to the surface. You also know that the electric field inside a solid conductor is ZERO. So, how much work do you have to do in moving a test charge from one point on a conductor to any other point on that conductor? What does this tell you about the POTENTIAL at all regions of a conductor? Penn State University Created by nitin samarth Physics Lab 202P-4 Page 7 of 17

8 (This page is left purposely blank) Penn State University Created by nitin samarth Physics Lab 202P-4 Page 8 of 17

9 Lab Activity: Understanding Equipotentials (A Real Experiment with a Virtual Interlude.) This lab involves two separate activities: A real experiment in which you will measure the electric potential in and around a charged "hollow" conductor A virtual experiment in which you simulate the electric potential from an electric dipole. It will be necessary to set up the real experiment first. Then, while the conductive ink is drying, you should go ahead and finish the simulation and return to the first activity: you will have to wait at least 20 minutes for the experiment to work properly. Just follow the instructions in the sequence given. I. Measuring the potential in, on and around a hollow conductor: setting the stage. Important Note: this experiment uses a conductive paint that should be used with common sense and ONLY as directed. i. Please use the disposable gloves provided when handling the paint. ii. Avoid getting the paint on your skin. iii. Do NOT get the silver paint in your eyes. (a) Th experiment makes use of the field plotting kit provided in lab. Place a sheet of conductive paper, printed side up, on a smooth hard surface. DO NOT attempt to draw the conductive electrodes while the paper is on the corkboard. (b) Shake the conductive pen (with the cap on) vigorously for seconds to disperse any particle matter suspended in the ink. (c) Remove the cap. Press the spring loaded tip lightly down on a piece of dark, scrap paper. If you now squeeze the pen barrel firmly, you will start the ink flowing. Draw the pen slowly across the scrap paper and you should get a solid silver/white line. The width of the line is determined by how fast you move the pen and how hard you press down. (d) Once you are satisfied that you can get this to work, it's time to draw an electrode on the conductive paper. Using the stencil, draw a circle of diameter 1.25" in the center of the paper. Then, draw a concentric circle of diameter 1.5" around the smaller circle. Use the pen to carefully shade the region between the two circles, forming a conducting "shell." Your pattern should be solid and not have spaces and holes. The experiment works best once the ink is dry and has maximum conductivity. This will take about 20 minutes. Set the conductive paper aside and go on to the next activity for now. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 9 of 17

10 II. Visualizing the electric potential created by a dipole: A Virtual Interlude. EMFIELD can be used to get some insights into the electric potential created by arrangements of point charges. We'll use our favorite one: the electric dipole. Start EMField from the Physics program group under the START menu. From the "Display" menu, select "Show grid" and "Constrain to grid"; From the "Sources" menu, select "3D point charges;" From the array of positive and negative charges at the bottom of the screen, select a positive charge of +4 units and drag it to a position somewhere near the middle of the screen. Select a negative charge of -4 units and position it 4 horizontal units from the positive charge. First, try to get a feeling for the values of the electric potential created by this electric dipole. To do this, from the "Fields and potential" menu, select the "Potential" option. If you click the mouse button down, the program will show a number that is proportional to the electric potential V at that point on the screen. The units in this program are of course arbitrary, but for convenience, we'll refer to them as "volts." Next, from the "Fields and potential" menu, select the "Equipotentials with number" option. If you click the mouse button down, the program will draw an equipotential passing through a given point on the screen. The line is labeled with a number that represents the electric potential V. Now, choose the "potential difference" option from the menu. This allows you to drag any path on the screen and calculates the potential difference between the starting position and the endpoint of the path. Try three different paths that begin and end at the same points and note how the potential difference varies with the choice of path. Finally, choose a path that approximately follows one of the equipotentials and confirm that the program indeed does make sense. Q1. Use the program to make a plot that shows equipotentials for the elctric dipole with the following values: V = -3.2 V, -1.5 V, -0.7 V, -0.3 V, 0 V, +0.3 V, +0.7 V, +1.5 V, +3.2 V. (In case you cannot match these values exactly, don't worry about it. Get as close as you can.) In this plot, also show a few electric field lines. Print this figure and include it with your report. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 10 of 17

11 Now, refer to your equipotential and electric field line plot, as well as to the exercises you carried out above, and answer the following questions. Q2. Do you notice any obvious geometrical relationship between equipotentials and electric field lines? Describe this relationship and why it makes sense. (Think about the direction of the electric field and the work done in moving a charge along an equipotential.) Q3. If you were to bring a positive charge from infinity to ANY point on the perpendicular bisector of the electric dipole following an ARBITRARY path, how much work would you do? Justify your answer using your equipotential plot. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 11 of 17

12 Q4. Is it true that wherever the electric potential V = 0, the electric field E is also 0? Justify/support your answer using information on your plot. Q5. Is it true (in general) that wherever the electric field E = 0, the electric potential V is also 0? Suggest an arrangement of charges that would help justify your answer. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 12 of 17

13 Q6. Suppose you released a POSITIVE charge from a point located on the +0.3 V equipotential. Would it move to a point of higher POTENTIAL or lower POTENTIAL? Would it move to a point of higher POTENTIAL ENERGY or lower POTENTIAL ENERGY? Justify your answers based on the electric field lines in your plot. Q7. Suppose you released a NEGATIVE charge from a point located on the +0.3 V equipotential. Would it move to a point of higher POTENTIAL or lower POTENTIAL? Would it move to a point of higher POTENTIAL ENERGY or lower POTENTIAL ENERGY? Justify your answers using the electric field lines in your plot. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 13 of 17

14 III. Back to the Hollow Conductor: A Return to (Messy) Reality. Simulations are great fun, but physics deals with the real world! So, let's get on with an experiment that examines the electric potential in and around a charged conductor. The principal equipment you need for the experiment consists of a 5 V DC power supply, a digital voltmeter, and the graphite paper on which you drew the conductive pattern. Keep in mind that the graphite paper is a slightly conductive paper and does in fact carry a small current (moving charge) when you apply a battery across it. So, even this experiment is not an accurate representation of static equilibrium! But, it actually works quite well. DC Power Supply Power Low voltage Com +5V Hi probe Digital voltmeter 5.03 Set to 20V On/off DC Input Lo Hi Lo probe First, position your paper (with the circle pattern facing up) on the corkboard provided. Fasten the paper to the corkboard using pushpins. Next, use a pushpin to connect a wire to a point on your silver circle; use a pushpin to connect another wire to a point on the periphery of the graphite paper. Make sure that the pushpins make good contact between the metal connector at the end of the wire and the silver pattern. Make sure the power supply is connected to the mains, with the power switch OFF. Connect the wire from the silver circle to the +5V output of the power supply. Connect the wire from the edge of the graphite paper to the "COM" output on the power supply (this refers to "common" or "ground" and provides a reference for 0 V). Turn the power ON and also turn the "low voltage" switch ON. Next, make sure the digital voltmeter is connected to its power supply. Set up the digital multimeter to read DC Volts by depressing the "V" button. Follow the gold path from the "V" to find the button that corresponds to a maximum voltage reading of 20 V. Depress that button. The digital voltmeter should have two probes plugged into its input: a red one and a black one. Place the black probe firmly in contact with the connector at the edge of the paper. Penn State University Created by nitin samarth Physics Lab 202P-4 Page 14 of 17

15 Make sure you contact the metal connector at the end of the wire, not the head of the pushpin. While the black probe is held in place, the red probe can now be used to read the potential at different places on the graphite paper. Answer the following questions: Q8. How does the potential vary when you probe different locations on your silver ring? What we expected and why: What we observed and why: Penn State University Created by nitin samarth Physics Lab 202P-4 Page 15 of 17

16 Q9. How does the potential vary with position outside the silver ring? For instance, how does it change with the distance from the center of the ring? Use a sketch to show, approximately, what the equipotentials look like? What we expected & why: What we observed and why: Penn State University Created by nitin samarth Physics Lab 202P-4 Page 16 of 17

17 Q10. How does the potential vary at different positions INSIDE the silver ring? What we expected and why: What we observed and why: Penn State University Created by nitin samarth Physics Lab 202P-4 Page 17 of 17

Physics Lab 202P-9. Magnetic Fields & Electric Current NAME: LAB PARTNERS:

Physics Lab 202P-9. Magnetic Fields & Electric Current NAME: LAB PARTNERS: Physics Lab 202P-9 Magnetic Fields & Electric Current NAME: LAB PARTNERS: LAB SECTION: LAB INSTRUCTOR: DATE: EMAIL ADDRESS: Penn State University Created by nitin samarth Physics Lab 202P-9 Page 1 of 22

More information

E X P E R I M E N T 2

E X P E R I M E N T 2 E X P E R I M E N T 2 The Electric Force Field Produced by the Physics Staff at Collin College Copyright Collin College Physics Department. All Rights Reserved. University Physics II, Exp 2: The Electric

More information

PHY222 Lab 2 - Electric Fields Mapping the Potential Curves and Field Lines of an Electric Dipole

PHY222 Lab 2 - Electric Fields Mapping the Potential Curves and Field Lines of an Electric Dipole Print Your Name PHY222 Lab 2 - Electric Fields Mapping the Potential Curves and Field Lines of an Electric Dipole Print Your Partners' Names Instructions January 23, 2015 Before lab, read the Introduction,

More information

Physics Lab 202P-3. Electric Fields and Superposition: A Virtual Lab NAME: LAB PARTNERS:

Physics Lab 202P-3. Electric Fields and Superposition: A Virtual Lab NAME: LAB PARTNERS: Physics Lab 202P-3 Electric Fields and Superposition: A Virtual Lab NAME: LAB PARTNERS: LAB SECTION: LAB INSTRUCTOR: DATE: EMAIL ADDRESS: Penn State University Created by nitin samarth Physics Lab 202P-3

More information

LAB 03 Electric Fields and Potentials

LAB 03 Electric Fields and Potentials Group: LAB 03 Electric Fields and Potentials Names: (Principle Coordinator) (Lab Partner) (Lab Partner) Motto: Say map! Say map! Dora the Explorer Goals: Developing an intuitive picture of the electric

More information

PHYSICS 221 LAB #3: ELECTROSTATICS

PHYSICS 221 LAB #3: ELECTROSTATICS Name: Partners: PHYSICS 221 LAB #3: ELECTROSTATICS The picture above shows several lines that each have a constant electric potential (equipotential lines) due to a person s beating heart. At the instant

More information

Science 14. Lab 1 - Potential Plotting

Science 14. Lab 1 - Potential Plotting Science 14 Lab 1 - Potential Plotting Theory Consider an isolated conductor, A, carrying a positive charge Q, as shown in figure (1a). If body B, with positive charge qo (Q >> qo) is moved to a position

More information

Phys1220 Lab Electrical potential and field lines

Phys1220 Lab Electrical potential and field lines Phys1220 Lab Electrical potential and field lines Purpose of the experiment: To explore the relationship between electrical potential (a scalar quantity) and electric fields (a vector quantity). Background:

More information

Electric Field Mapping

Electric Field Mapping Electric Field Mapping Objectives To determine the equipotential lines and the corresponding electric field lines for a variety of arrangements of conductors in a plane. Theory The concept of an electric

More information

Electric Fields and Equipotentials

Electric Fields and Equipotentials Electric Fields and Equipotentials Note: There is a lot to do in this lab. If you waste time doing the first parts, you will not have time to do later ones. Please read this handout before you come to

More information

Experiment 17 Electric Fields and Potentials

Experiment 17 Electric Fields and Potentials Experiment 17 Electric Fields and Potentials Advanced Reading: Serway & Jewett - 8 th Edition Chapters 23 & 25 Equipment: 2 sheets of conductive paper 1 Electric Field Board 1 Digital Multimeter (DMM)

More information

Physics 208 Fall 2008 Lab 4: Electric Fields and Electric Potentials

Physics 208 Fall 2008 Lab 4: Electric Fields and Electric Potentials Name Section Physics 208 Fall 2008 Lab 4: Electric Fields and Electric Potentials Your TA will use this sheet to score your lab. It is to be turned in at the end of lab. You must use complete sentences

More information

Equipotentials and Electric Fields

Equipotentials and Electric Fields Equipotentials and Electric Fields PURPOSE In this lab, we will investigate the relationship between the equipotential surfaces and electric field lines in the region around several different electrode

More information

OBJECTIVE: To understand the relation between electric fields and electric potential, and how conducting objects can influence electric fields.

OBJECTIVE: To understand the relation between electric fields and electric potential, and how conducting objects can influence electric fields. Name Section Question Sheet for Laboratory 4: EC-2: Electric Fields and Potentials OBJECTIVE: To understand the relation between electric fields and electric potential, and how conducting objects can influence

More information

Electric Fields and Potential

Electric Fields and Potential General Physics Lab 2 Siena College Object Electric Fields and Potential This experiment further explores the electrostatic interaction between charged objects. The concepts of electric field and potential

More information

Electric Fields and Potentials

Electric Fields and Potentials Electric Fields and Potentials INTRODUCTION Physicists use the concept of a field to explain the interaction of particles or bodies through space, i.e., the action-at-a-distance force between two bodies

More information

Electric Fields. Goals. Introduction

Electric Fields. Goals. Introduction Lab 2. Electric Fields Goals To understand how contour lines of equal voltage, which are easily measured, relate to the electric field produced by electrically charged objects. To learn how to identify

More information

PHY152H1S Practicals 4 and 5: Electric Potential, Electric Field

PHY152H1S Practicals 4 and 5: Electric Potential, Electric Field PHY152H1S Practicals 4 and 5: Electric Potential, Electric Field Don t forget: List the NAMES of all participants on the first page of each day s write-up. Note if any participants arrived late or left

More information

UNIT 102-2: ELECTRIC POTENTIAL AND CAPACITANCE Approximate time two 100-minute sessions

UNIT 102-2: ELECTRIC POTENTIAL AND CAPACITANCE Approximate time two 100-minute sessions Name St.No. Date(YY/MM/DD) / / Section UNIT 1022: ELECTRIC POTENTIAL AND CAPACITANCE Approximate time two 100minute sessions I get a real charge out of capacitors. P. W. Laws OBJECTIVES 1. To understand

More information

2 Electric Field Mapping Rev1/05

2 Electric Field Mapping Rev1/05 2 Electric Field Mapping Rev1/05 Theory: An electric field is a vector field that is produced by an electric charge. The source of the field may be a single charge or many charges. To visualize an electric

More information

PHY132 Practicals Week 6 Student Guide

PHY132 Practicals Week 6 Student Guide PHY132 Practicals Week 6 Student Guide Concepts of this Module Electric Potential Electric Field Background A field is a function, f (x,y,z), that assigns a value to every point in space (or some region

More information

Electric Fields and Potentials

Electric Fields and Potentials Electric Fields and Potentials INTRODUCTION This experiment is intended to illustrate the concepts of electric fields and electric potentials and how they are related to the charge distribution that produces

More information

Electric Field and Electric Potential

Electric Field and Electric Potential Electric Field and Electric Potential INTRODUCTION Physicists use the concept of a field 1 to explain the interaction of particles or bodies through space, i.e., the action-at-a-distance 2 force between

More information

Electric Field Around a Conductor

Electric Field Around a Conductor 66 Electric Field Around a Conductor Equipment List Qty Items Part Numbers 1 Voltage Sensor CI-6503 1 Equipotential and Field Mapper Kit PK-9023 1 Power Supply, 15 VDC SE-9720 1 Silver (nonconductive)

More information

Physics 1BL Electric Potentials & Fields Summer Session II 2010

Physics 1BL Electric Potentials & Fields Summer Session II 2010 Pre-Lab Activity The diagram represents a contour map of a hilly island. Copy it into your lab notebook. The outer contour of the figure is at sea level. All points on any one particular contour line are

More information

Mapping the Electric Field and Equipotential Lines. Multimeter Pushpins Connecting wires

Mapping the Electric Field and Equipotential Lines. Multimeter Pushpins Connecting wires Circle Your Lab Day: M T W Th F Name: Lab Partner: Lab Partner: Mapping the Electric Field and Equipotential Lines. Equipment: Cork board Conductive paper DC Power supply Multimeter Pushpins Connecting

More information

Electric Fields and Equipotentials

Electric Fields and Equipotentials OBJECTIVE Electric Fields and Equipotentials To study and describe the two-dimensional electric field. To map the location of the equipotential surfaces around charged electrodes. To study the relationship

More information

Equipotential and Electric Field Mapping

Equipotential and Electric Field Mapping Experiment 2 Equipotential and Electric Field Mapping 2.1 Objectives 1. Determine the lines of constant electric potential for two simple configurations of oppositely charged conductors. 2. Determine the

More information

Experiment 17 Electric Fields and Potentials

Experiment 17 Electric Fields and Potentials Experiment 17 Electric Fields and Potentials Equipment: 2 sheets of conductive paper 1 Electric Field Board 1 Digital Multimeter (DMM) & DMM leads 1 plastic tip holder w/ two 1cm spaced holes 1 power supply

More information

Lab: Electric Potential & Electric Field I

Lab: Electric Potential & Electric Field I Lab: INTRODUCTION In this lab, you will determine the electric potential produced by a set of electrodes held at a fixed voltage. The working surface of the experiment will be a two-dimensional sheet of

More information

Electric Field Mapping. Department of Physics & Astronomy Texas Christian University, Fort Worth, TX

Electric Field Mapping. Department of Physics & Astronomy Texas Christian University, Fort Worth, TX Electric Field Mapping Department of Physics & Astronomy Texas Christian University, Fort Worth, TX April 15, 2013 Lab 1 Electric Field Mapping 1.1 Introduction For macroscopic objects with electrical

More information

Electric Field Mapping

Electric Field Mapping PC1143 Physics III Electric Field Mapping 1 Objectives Map the electric fields and potentials resulting from three different configurations of charged electrodes rectangular, concentric, and circular.

More information

Electric Field Mapping

Electric Field Mapping Electric Field Mapping Equipment: mapping board, U-probe, 5 resistive boards, templates, 4 long leads, Phywe 07035.00 voltmeter, DC wall voltage output, 3 pieces of paper Precautions 1. Before turning

More information

Electric Fields and Potentials

Electric Fields and Potentials Electric Fields and Potentials Please do not write on the conducting sheet, and do not use more than 5 volts from the power supply. Introduction The force between electric charges is intriguing. Why are

More information

Goals: Equipment: Introduction:

Goals: Equipment: Introduction: Goals: To explore the electric potential surrounding two equally and oppositely charged conductors To identify equipotential surfaces/lines To show how the electric field and electric potential are related

More information

Lab 3: Electric Field Mapping Lab

Lab 3: Electric Field Mapping Lab Lab 3: Electric Field Mapping Lab Last updated 9/14/06 Lab Type: Cookbook/Quantitative Concepts Electrostatic Fields Equi-potentials Objectives Our goal in this exercise is to map the electrostatic equi-potential

More information

Electric Field Mapping Lab 2. Precautions

Electric Field Mapping Lab 2. Precautions TS 2-12-12 Electric Field Mapping Lab 2 1 Electric Field Mapping Lab 2 Equipment: mapping board, U-probe, resistive boards, templates, dc voltmeter (431B), 4 long leads, 16 V dc for wall strip Reading:

More information

Experiment VIII Equipotentials and Fields

Experiment VIII Equipotentials and Fields Experiment VIII Equipotentials and Fields I. References Serway and Jewett, Vol. 2, Chapter 25 II. Apparatus 4 electrode boards docking station for electrode boards 2 templates for drawing electrodes DC

More information

College Physics II Lab 5: Equipotential Lines

College Physics II Lab 5: Equipotential Lines INTRODUCTION College Physics II Lab 5: Equipotential Lines Peter Rolnick and Taner Edis Spring 2018 Introduction You will learn how to find equipotential lines in a tray of tap water. (Consult section

More information

Electric Fields. Goals. Introduction

Electric Fields. Goals. Introduction Lab 2. Electric Fields Goals To understand how contour lines of equal voltage, which are easily measured, relate to the electric field produced by electrically charged objects. To learn how to identify

More information

7/06 Electric Fields and Energy

7/06 Electric Fields and Energy Part ASome standard electric field and potential configurations About this lab: Electric fields are created by electric charges and exert force on charges. Electric potential gives an alternative description.

More information

Electric Field Mapping

Electric Field Mapping Electric Field Mapping Equipment: mapping board, U-probe, 5 resistive boards, templates, knob adjustable DC voltmeter, 4 long leads, 16 V DC for wall strip, 8 1/2 X 11 sheets of paper Reading: Topics of

More information

Experiment 2-2. Equipotential Lines. - Electric Field and Gauss's Law

Experiment 2-2. Equipotential Lines. - Electric Field and Gauss's Law Experiment 2-2. Equipotential Lines - Electric Field and Gauss's Law Purpose of Experiment By introducing the concept of electric field, we can improve our understanding about force between separated charges.

More information

TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL

TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL DETERMINATION OF THE ELECTRIC FIELD BY DETERMINING THE EQUIPOTENTIAL LINES BY USING A VOLTMETER Extended Essay (Physics) Name of CANDIDATE: Tuğal Serger Diploma

More information

Equipotential and Electric Field Mapping

Equipotential and Electric Field Mapping Experiment 1 Equipotential and Electric Field Mapping 1.1 Objectives 1. Determine the lines of constant electric potential for two simple configurations of oppositely charged conductors. 2. Determine the

More information

Electric Field Mapping (approx. 2 h 15 min.) (8/8/2018)

Electric Field Mapping (approx. 2 h 15 min.) (8/8/2018) Electric Field Mapping (approx. 2 h 15 min.) (8/8/2018) Equipment shallow glass pan pitcher for water masking tape graph paper (8.5 x14 ) colored pencils metal shapes sand paper paper towels DC power supply

More information

Electric Field Mapping

Electric Field Mapping Electric Field Mapping I hear and I forget. I see and I remember. I do and I understand Anonymous OBJECTIVE To visualize some electrostatic potentials and fields. THEORY Our goal is to explore the electric

More information

LAB 3: Capacitors & RC Circuits

LAB 3: Capacitors & RC Circuits LAB 3: Capacitors & C Circuits Name: Circuits Experiment Board Wire leads Capacitors, esistors EQUIPMENT NEEDED: Two D-cell Batteries Multimeter Logger Pro Software, ULI Purpose The purpose of this lab

More information

Elizabethtown College

Elizabethtown College Elizabethtown College Department of Physics and Engineering PHY 104 Laboratory Lab # 6 Electric Flux Lines and Equipotential Surfaces 1. Introduction In this experiment you will study and actually trace

More information

PHY222 - Lab 7 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge.

PHY222 - Lab 7 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge. PHY222 Lab 7 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge. Print Your Name Print Your Partners' Names You will return this handout to the instructor

More information

Physics 1B ELECTRIC FIELDS AND POTENTIALS Rev. 3-AH. Introduction

Physics 1B ELECTRIC FIELDS AND POTENTIALS Rev. 3-AH. Introduction Introduction This material corresponds with Hecht, Chapters 15 and 16. In this lab you will focus on the concepts of electric fields, electric potential, and parallel-plate capacitors. It is a good idea

More information

Concepts in Physics Lab 9: Equipotential Lines

Concepts in Physics Lab 9: Equipotential Lines INTRODUCTION Concepts in Physics Lab 9: Equipotential Lines Taner Edis Fall 2018 Introduction We will play around with electrical energy, seeing how very abstract, invisible concepts like electrical energy

More information

Experiment 2 Electric Field Mapping

Experiment 2 Electric Field Mapping Experiment 2 Electric Field Mapping I hear and I forget. I see and I remember. I do and I understand Anonymous OBJECTIVE To visualize some electrostatic potentials and fields. THEORY Our goal is to explore

More information

Lab 5 RC Circuits. What You Need To Know: Physics 212 Lab

Lab 5 RC Circuits. What You Need To Know: Physics 212 Lab Lab 5 R ircuits What You Need To Know: The Physics In the previous two labs you ve dealt strictly with resistors. In today s lab you ll be using a new circuit element called a capacitor. A capacitor consists

More information

Lab 5 RC Circuits. What You Need To Know: Physics 212 Lab

Lab 5 RC Circuits. What You Need To Know: Physics 212 Lab Lab 5 R ircuits What You Need To Know: The Physics In the previous two labs you ve dealt strictly with resistors. In today s lab you ll be using a new circuit element called a capacitor. A capacitor consists

More information

You will return this handout to the instructor at the end of the lab period. Experimental verification of Ampere s Law.

You will return this handout to the instructor at the end of the lab period. Experimental verification of Ampere s Law. PHY222 LAB 6 AMPERE S LAW Print Your Name Print Your Partners' Names Instructions Read section A prior to attending your lab section. You will return this handout to the instructor at the end of the lab

More information

Electric Field and Electric Potential

Electric Field and Electric Potential 1 Electric Field and Electric Potential 2 Prelab Write experiment title, your name and student number at top of the page. Prelab 1: Write the objective of this experiment. Prelab 2: Write the relevant

More information

LABORATORY V MAGNETIC FIELDS AND FORCES

LABORATORY V MAGNETIC FIELDS AND FORCES LABORATORY V MAGNETIC FIELDS AND FORCES Magnetism plays a large part in our modern world's technology. Magnets are used today to image parts of the body, to explore the mysteries of the human brain, and

More information

In this experiment, the concept of electric field will be developed by

In this experiment, the concept of electric field will be developed by Physics Equipotential Lines and Electric Fields Plotting the Electric Field PURPOSE MATERIALS 5 alligator clip leads 2 batteries, 9 V 2 binder clips, large computer In this experiment, the concept of electric

More information

Lab 1: Background and Useful Information

Lab 1: Background and Useful Information 3 Lab 1: Background and Useful Information Objective As a result of performing this lab, you will be able to: 1. measure an unknown capacitance by connecting it in parallel to a known capacitance and a

More information

UNIT 21: ELECTRICAL AND GRAVITATIONAL POTENTIAL Approximate time two 100-minute sessions

UNIT 21: ELECTRICAL AND GRAVITATIONAL POTENTIAL Approximate time two 100-minute sessions Name St.No. - Date(YY/MM/DD) / / Section UNIT 21: ELECTRICAL AND GRAVITATIONAL POTENTIAL Approximate time two 100-minute sessions OBJECTIVES I began to think of gravity extending to the orb of the moon,

More information

PHY221 Lab 2 - Experiencing Acceleration: Motion with constant acceleration; Logger Pro fits to displacement-time graphs

PHY221 Lab 2 - Experiencing Acceleration: Motion with constant acceleration; Logger Pro fits to displacement-time graphs Page 1 PHY221 Lab 2 - Experiencing Acceleration: Motion with constant acceleration; Logger Pro fits to displacement-time graphs Print Your Name Print Your Partners' Names You will return this handout to

More information

Electric field and electric potential

Electric field and electric potential Electric field and electric potential Objective Ø In this experiment, you will measure electric potential and use those measurements to plot both equipotential lines and electric field lines for two configurations

More information

PHY 112L Activity 1 Electric Charges, Potentials, and Fields

PHY 112L Activity 1 Electric Charges, Potentials, and Fields PHY 112L Activity 1 Electric Charges, Potentials, and Fields Name: Section: ID #: Date: Lab Partners: TA initials: Objectives 1. Understand the basic properties, such as the magnitude and force, of electric

More information

1. Electrostatic Lab [1]

1. Electrostatic Lab [1] 1. Electrostatic Lab [1] Purpose: To determine the charge and charge distribution on insulators charged by the triboelectric effects and conductors charged by an Electrostatic Voltage Source. Equipment:

More information

Experiment 1 Solutions: Equipotential Lines and Electric Fields

Experiment 1 Solutions: Equipotential Lines and Electric Fields MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Experiment 1 Solutions: Equipotential Lines and Electric Fields IN-LAB ACTIVITIES EXPERIMENTAL SETUP 1. Download the LabView file from the

More information

PS 12b Lab 1a Basic Electrostatics

PS 12b Lab 1a Basic Electrostatics Names: 1.) 2.) 3.) PS 12b Lab 1a Basic Electrostatics Learning Goal: Familiarize students with the concepts of charge, charge interaction, charge transfer, and polarization. We will also illustrate a way

More information

Figure 1: Capacitor circuit

Figure 1: Capacitor circuit Capacitors INTRODUCTION The basic function of a capacitor 1 is to store charge and thereby electrical energy. This energy can be retrieved at a later time for a variety of uses. Often, multiple capacitors

More information

NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT. Physics 211 E&M and Quantum Physics Spring Lab #4: Electronic Circuits I

NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT. Physics 211 E&M and Quantum Physics Spring Lab #4: Electronic Circuits I NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT Physics 211 E&M and Quantum Physics Spring 2018 Lab #4: Electronic Circuits I Lab Writeup Due: Mon/Wed/Thu/Fri, Feb. 12/14/15/16, 2018 Background The concepts

More information

EE 241 Experiment #5: TERMINAL CHARACTERISTICS OF LINEAR & NONLINEAR RESISTORS 1

EE 241 Experiment #5: TERMINAL CHARACTERISTICS OF LINEAR & NONLINEAR RESISTORS 1 EE 241 Experiment #5: TERMINA CHARACTERISTICS OF INEAR & NONINEAR RESISTORS 1 PURPOSE: To experimentally determine some of the important characteristics of common linear and non-linear resistors. To study

More information

Lab 10: DC RC circuits

Lab 10: DC RC circuits Name: Lab 10: DC RC circuits Group Members: Date: TA s Name: Objectives: 1. To understand current and voltage characteristics of a DC RC circuit 2. To understand the effect of the RC time constant Apparatus:

More information

B = 8 0 NI/[r (5) 3/2 ],

B = 8 0 NI/[r (5) 3/2 ], ELECTRON BEAM IN A MAGNETIC FIELD Introduction: A charged body moving relative to a magnetic field experiences a force which is perpendicular to both the velocity of the particle and to the magnetic field.

More information

8-Aug-10 PHYS Electric Field Mapping. Objective To map the equipotential lines and construct electric field line between two charged objects.

8-Aug-10 PHYS Electric Field Mapping. Objective To map the equipotential lines and construct electric field line between two charged objects. Electric Field Mapping Objective To map the equipotential lines and construct electric field line between two charged objects. Theory Two like charges repel each other and unlike charges attract each other

More information

To determine relative oxidizing and reducing strengths of a series of metals and ions.

To determine relative oxidizing and reducing strengths of a series of metals and ions. Redox Reactions PURPOSE To determine relative oxidizing and reducing strengths of a series of metals and ions. GOALS 1 To explore the relative oxidizing and reducing strengths of different metals. 2 To

More information

Partner s Name: EXPERIMENT MOTION PLOTS & FREE FALL ACCELERATION

Partner s Name: EXPERIMENT MOTION PLOTS & FREE FALL ACCELERATION Name: Partner s Name: EXPERIMENT 500-2 MOTION PLOTS & FREE FALL ACCELERATION APPARATUS Track and cart, pole and crossbar, large ball, motion detector, LabPro interface. Software: Logger Pro 3.4 INTRODUCTION

More information

ECE 220 Laboratory 4 Volt Meter, Comparators, and Timer

ECE 220 Laboratory 4 Volt Meter, Comparators, and Timer ECE 220 Laboratory 4 Volt Meter, Comparators, and Timer Michael W. Marcellin Please follow all rules, procedures and report requirements as described at the beginning of the document entitled ECE 220 Laboratory

More information

Lab 7: EC-5, Faraday Effect Lab Worksheet

Lab 7: EC-5, Faraday Effect Lab Worksheet Lab 7: EC-5, Faraday Effect Lab Worksheet Name This sheet is the lab document your TA will use to score your lab. It is to be turned in at the end of lab. To receive full credit you must use complete sentences

More information

Equipotential Lines and Electric Fields

Equipotential Lines and Electric Fields Physics Equipotential Lines and Electric Fields Plotting the Electric Field MATERIALS AND RESOURCES EACH GROUP 5 alligator clip leads 2 batteries, 9 V 2 binder clips, large computer LabQuest multimeter,

More information

Lab 1: Electric Field Measurements

Lab 1: Electric Field Measurements My Name Lab Partner Name Phys 40 Lab Section Lab 1: Electric Field Measurements Objective: In this lab we measured the electric potential and electric field produced by applying a positive voltage to the

More information

ElectroChemistry * Section I: Reactivity of Metals and Metal Ions PRELAB

ElectroChemistry * Section I: Reactivity of Metals and Metal Ions PRELAB ElectroChemistry * Name Section Instructions: You and your partner(s) will be working with a computer simulation that covers electrochemistry, please discuss each question with your partner(s) and write

More information

RC Circuit Lab - Discovery PSI Physics Capacitors and Resistors

RC Circuit Lab - Discovery PSI Physics Capacitors and Resistors 1 RC Circuit Lab - Discovery PSI Physics Capacitors and Resistors Name Date Period Purpose The purpose of this lab will be to determine how capacitors behave in R-C circuits. The manner in which capacitors

More information

ELECTRIC FIELD. 2. If you have an equipotential surface that means that the potential difference is zero, along that surface. a. true b.

ELECTRIC FIELD. 2. If you have an equipotential surface that means that the potential difference is zero, along that surface. a. true b. ELECTRIC FIELD Pre-Lab Questions Page Name: Class: Roster Number: Instructor: Multiply Choice: Circle the correct answer 1. Electric field lines are drawn from a. positive charges to negative charges b.

More information

MAPPING ELECTRIC FIELD LINES FOR VARIOUS CHARGED OBJECTS

MAPPING ELECTRIC FIELD LINES FOR VARIOUS CHARGED OBJECTS MAPPING ELECTRIC FIELD LINES FOR VARIOUS CHARGED OBJECTS Apparatus: DC Power Supply (~20V), Voltmeter w/probes, shallow plastic container with grid on bottom, electrical wires, two alligator clips, two

More information

Name Date Time to Complete

Name Date Time to Complete Name Date Time to Complete h m Partner Course/ Section / Grade Capacitance Equipment Doing some simple experiments, including making and measuring the capacitance of your own capacitor, will help you better

More information

Worksheet for Exploration 6.1: An Operational Definition of Work

Worksheet for Exploration 6.1: An Operational Definition of Work Worksheet for Exploration 6.1: An Operational Definition of Work This Exploration allows you to discover how work causes changes in kinetic energy. Restart. Drag "handy" to the front and/or the back of

More information

Electrostatics II. Introduction

Electrostatics II. Introduction Electrostatics II Objective: To learn how excess charge is created and transferred. To measure the electrostatic force between two objects as a function of their electrical charges and their separation

More information

Lab 6 Electrostatic Charge and Faraday s Ice Pail

Lab 6 Electrostatic Charge and Faraday s Ice Pail Lab 6 Electrostatic Charge and Faraday s Ice Pail Learning Goals to investigate the nature of charging an object by contact as compared to charging an object by induction to determine the polarity of two

More information

pka AND MOLAR MASS OF A WEAK ACID

pka AND MOLAR MASS OF A WEAK ACID Experiment 10 pka AND MOLAR MASS OF A WEAK ACID Adapted by the Chemistry Faculty of Eastern Michigan University from EQUL 305,written by Richard C. Bell, Lebanon Valley College, published by Chemical Education

More information

PHYS320 ilab (O) Experiment 2 Instructions Conservation of Energy: The Electrical Equivalent of Heat

PHYS320 ilab (O) Experiment 2 Instructions Conservation of Energy: The Electrical Equivalent of Heat PHYS320 ilab (O) Experiment 2 Instructions Conservation of Energy: The Electrical Equivalent of Heat Objective: The purpose of this activity is to determine whether the energy dissipated by a heating resistor

More information

Harmonic Motion. Mass on a Spring. Physics 231: General Physics I Lab 6 Mar. 11, Goals:

Harmonic Motion. Mass on a Spring. Physics 231: General Physics I Lab 6 Mar. 11, Goals: Physics 231: General Physics I Lab 6 Mar. 11, 2004 Names: Harmonic Motion Goals: 1. To learn about the basic characteristics of periodic motion period, frequency, and amplitude 2. To study what affects

More information

Notebook Circuits With Metering. 22 February July 2009

Notebook Circuits With Metering. 22 February July 2009 Title: Original: Revision: Authors: Appropriate Level: Abstract: Time Required: NY Standards Met: 22 February 2007 14 July 2009 Notebook Circuits With Metering Jim Overhiser, Monica Plisch, and Julie Nucci

More information

Physics 123 Lab 2: Electric Field Physics 123: Electricity and Magnetism

Physics 123 Lab 2: Electric Field Physics 123: Electricity and Magnetism Physics 123 Lab 2: Electric Field Physics 123: Electricity and Magnetism Instructor: Professor Andrew Boudreaux, Andrew.Boudreaux@wwu.edu Introduction In the previous lab, you saw that two charged objects

More information

θ Beam Pivot F r Figure 1. Figure 2. STATICS (Force Vectors, Tension & Torque) MBL-32 (Ver. 3/20/2006) Name: Lab Partner: Lab Partner:

θ Beam Pivot F r Figure 1. Figure 2. STATICS (Force Vectors, Tension & Torque) MBL-32 (Ver. 3/20/2006) Name: Lab Partner: Lab Partner: Please Circle Your Lab day: M T W T F Name: Lab Partner: Lab Partner: Project #1: Kinesthetic experiences with force vectors and torque. Project #2: How does torque depend on the lever arm? Project #1:

More information

Current Balance Warm Up

Current Balance Warm Up PHYSICS EXPEIMENTS 133 Current Balance-1 Current Balance Warm Up 1. Force between current-carrying wires First, let us assume only one wire exists,. Wire 1 has a length (where is "long") and carries a

More information

AP Physics Study Guide Chapter 17 Electric Potential and Energy Name. Circle the vector quantities below and underline the scalar quantities below

AP Physics Study Guide Chapter 17 Electric Potential and Energy Name. Circle the vector quantities below and underline the scalar quantities below AP Physics Study Guide Chapter 17 Electric Potential and Energy Name Circle the vector quantities below and underline the scalar quantities below electric potential electric field electric potential energy

More information

Introduction to Charges. BCLN PHYSICS 12 - Rev. Sept/2012

Introduction to Charges. BCLN PHYSICS 12 - Rev. Sept/2012 Electrostatics ~ Learning Guide Name: Instructions: Using a pencil, answer the following questions. The Pre-Reading is marked, based on effort, completeness, and neatness (not accuracy). The rest of the

More information

STUDENT LABORATORY Plant Respiration and Photosynthesis

STUDENT LABORATORY Plant Respiration and Photosynthesis Pasco Plant Respiration and Photosynthesis Page 1 of 5 STUDENT LABORATORY Plant Respiration and Photosynthesis Grade (Out of 20): Lab Credits: Full Name: Lab Section: Lab Instructor: Lab Date: Credit:

More information

Linear Motion with Constant Acceleration

Linear Motion with Constant Acceleration Linear Motion 1 Linear Motion with Constant Acceleration Overview: First you will attempt to walk backward with a constant acceleration, monitoring your motion with the ultrasonic motion detector. Then

More information

Fundamentals of Circuits I: Current Models, Batteries & Bulbs

Fundamentals of Circuits I: Current Models, Batteries & Bulbs Name: Lab Partners: Date: Pre-Lab Assignment: Fundamentals of Circuits I: Current Models, Batteries & Bulbs (Due at the beginning of lab) 1. Explain why in Activity 1.1 the plates will be charged in several

More information

LABORATORY 4 ELECTRIC CIRCUITS I. Objectives

LABORATORY 4 ELECTRIC CIRCUITS I. Objectives LABORATORY 4 ELECTRIC CIRCUITS I Objectives to be able to discuss potential difference and current in a circuit in terms of electric field, work per unit charge and motion of charges to understand that

More information