10 N acts on a charge in an electric field of strength 250 N.C What is the value of the charge?


 Leslie Murphy
 4 years ago
 Views:
Transcription
1 Year 11 Physics Electrical Energy in the Home Name: 1. Draw the electric field lines around a) a single positive charge b) between two opposite charged bodies c) two parallel plates A force of 5 10 N acts on a charge in an electric field of strength 250 N.C What is the value of the charge? 3. A proton is placed is placed in a uniform electric field of 1000 N.C 1. What is the force acting on the proton? 4. An electron is released from rest from the negative plate from a pair of parallel, oppositely charged plates. If the electric field strength between them is 500N.C 1 and the distance between them is 5 cm a) Determine the force exerted on the electron. b) What is the acceleration the electron experiences? c) Determine the velocity with which the electron strikes the positive plate A current of 5 amps flows in a wire. a) What charge flows past a point in the wire in l minute? b) How many electrons pass a given point in the wire in that point? 6. In what direction does conventional current flow? 7. A piece of wire of length 1 and crosssection A had a resistance of 10 ohms. What would be the resistance of a piece of wire of the same material if the length was 21 and the crosssection was 2A? 8. An experiment was carried out where the current through a tungsten filament globe was increased and the potential difference across the globe measured as the current changed. The results are shone in the table below. 1
2 I (A) V (V) a) Draw the circuit which would have been used for this experiment. b) Plot a graph of V vs I from the table c) What does the slope of this graph represent? d) Is the slope constant/ Explain any in the graph. e) Use the graph to find i) the P.D. across the globe when the current is 0.5 A. ii) the resistance of the globe at 0.5 A. 2
3 9. Consider the circuit below: 10, In the circuit below find the reading on the ammeter A when the switch is a) open b) closed If the ammeter reads 4 A fend the value of: a) the resistance R. b) P.D. across the parallel circuit c) the current through each resistor. 11. List three advantages that a parallel circuit would have over a series circuit in household wiring. 12. If electricity costs 15c per kilowatthour calculate i) the energy consumed ii) the cost of using: a) 2000W radiator for 6 hours b) a 100 W globe and a 1kW radiator for 3 hours. c) a 7200 W water heater for 15 minutes. 13. For the magnetic field shown draw the direction of the current a) b) c). X X X X X X X X.... X.... 3
4 14. Draw the magnetic lines of force around the coil shown below. 15. A circuit is shown below. If the current in the 18 ohm resistor is 0.50 A, what is a) the P.D. between A and G? b) the current in the 9.0 ohm resistor? c) the current in the 2.0 ohm resistor? d) the P.D. between G and B? e) The current in the 4.0 ohm resistor? f) the total resistance of the circuit? g) the total current the battery provides? Data: Mass of an electron = 9.91 X g Mass of a proton = 1.67 X kg Charge on an electron = 1.6 X Coulombs Charge on a proton = X Coulombs 4
5 Year 11 Physics Electrical Energy in the Home Name: 1. Draw the electric field lines around a) a single positive charge b) between two opposite charged bodies c) two parallel plates A force of 5 10 N acts on a charge in an electric field of strength 250 N.C What is the value of the charge? 6 F q = = = 2 10 C E A proton is placed is placed in a uniform electric field of 1000 N.C 1. What is the force acting on the proton? F = qe = = N(direction) 4. An electron is released from rest from the negative plate from a pair of parallel, oppositely charged plates. If the electric field strength between them is 500N.C 1 and the distance between them is 5 cm a) Determine the force exerted on the electron. F = qe = = 8 10 N b) What is the acceleration the electron experiences? F = ma F a = m = = m / s c) Determine the velocity with which the electron strikes the positive plate.??? 5. A current of 5 amps flows in a wire. a) What charge flows past a point in the wire in l minute? q = 5 60 = 300C b) How many electrons pass a given point in the wire in that point???? 6. In what direction does conventional current flow? Positive to Negative 7. A piece of wire of length 1 and crosssection A had a resistance of 10 ohms. What would be the resistance of a piece of wire of the same material if the length was 21 and the crosssection was 2A? 1 1
6 1 R = p a R = 10Ω 8. An experiment was carried out where the current through a tungsten filament globe was increased and the potential difference across the globe measured as the current changed. The results are shone in the table below. I (A) V (V) a) Draw the circuit which would have been used for this experiment. b) Plot a graph of V vs I from the table (Looks like y=sqr(x) graph) c) What does the slope of this graph represent? The resistance of the globe at different currents/voltages. d) Is the slope constant/ Explain any in the graph. No. It is not constant because the globe is not ohmic (ie. energy is also given off as light.) e) Use the graph to find i) the P.D. across the globe when the current is 0.5 A. 3.5V ii) the resistance of the globe at 0.5 A. V 3.5 R = = = 7Ω I Consider the circuit below: If the ammeter reads 4 A fend the value of: a) the resistance R.??? b) P.D. across the parallel circuit V = IR = 8V 10, In the circuit below find the reading on the ammeter A when the switch is a) open R = 5Ω V I = = R b) closed R = 4Ω I = V R 12 5 = 2.4A 12 = = 3A 4 2
7 c) the current through each resistor. I = 4A I I I 6Ω 5Ω 4Ω 2Ω = 1.6A = 2A = 0.4A 11. List three advantages that a parallel circuit would have over a series circuit in household wiring. If one wire breaks, the rest of the circuit still works. The components all receive the same voltage. It is easier to identify (and fix) the broken/faulty section. 12. If electricity costs 15c per kilowatthour calculate i) the energy consumed ii) the cost of using: a) 2000W radiator for 6 hours i) E = Pt = 43. 2MJ ii) $1.80 b) a 100 W globe and a 1kW radiator for 3 hours. i) E=10.8MJ ii) $0.495 c) a 7200 W water heater for 15 minutes. i) E=6.48MJ ii) $ For the magnetic field shown draw the direction of the current a) b) c). X X X X X X X X.... X Draw the magnetic lines of force around the coil shown below. 3
8 15. A circuit is shown below. If the current in the 18 ohm resistor is 0.50 A, what is a) the P.D. between A and G? V = = 9V b) the current in the 9.0 ohm resistor? V I = = 1A R c) the current in the 2.0 ohm resistor? I = 1. 5A d) the P.D. between G and B? V = = 3V e) The current in the 4.0 ohm resistor? f) the total resistance of the circuit? 2.6 Ω g) the total current the battery provides? V 12 I = = = 4. 5A R 2.6 Data: Mass of an electron = 9.91 X g Mass of a proton = 1.67 X kg Charge on an electron = 1.6 X Coulombs Charge on a proton = X Coulombs 4
Electricity Final Unit Final Assessment
Electricity Final Unit Final Assessment Name k = 1/ (4pe 0 ) = 9.0 10 9 N m 2 C 2 mass of an electron = 9.11 1031 kg mass of a proton = 1.67 1027 kg G = 6.67 1011 N m 2 kg 2 C = 3 x10 8 m/s Show all
More information1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. magnetic. flux linkage / Wbturns 1.
1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. 2 magnetic 1 flux linkage / 0 10 2 Wbturns 1 2 5 10 15 t / 10 3 s Fig. 3.1 The generator has a flat coil
More information1 of 23. Boardworks Ltd Electrical Power
1 of 23 Boardworks Ltd 2016 Electrical Power Electrical Power 2 of 23 Boardworks Ltd 2016 What is electrical power? 3 of 23 Boardworks Ltd 2016 Electrical power is the rate at which energy is transferred
More informationTest Review Electricity
Name: Date: 1. An operating television set draws 0.71 ampere of current when connected to a 120volt outlet. Calculate the time it takes the television to consume 3.0 10 5 joules of electric energy. [Show
More informationUse these circuit diagrams to answer question 1. A B C
II Circuit Basics Use these circuit diagrams to answer question 1. B C 1a. One of the four voltmeters will read 0. Put a checkmark beside it. b. One of the ammeters is improperly connected. Put a checkmark
More informationElectricity. Prepared by Juan Blázquez, Alissa Gildemann. Electric charge is a property of all objects. It is responsible for electrical phenomena.
Unit 11 Electricity 1. Electric charge Electric charge is a property of all objects. It is responsible for electrical phenomena. Electrical phenomena are caused by the forces of attraction and repulsion.
More informationPreliminary Course Physics Module 8.3 Electrical Energy in the Home Summative Test. Student Name:
Summative Test Student Name: Date: / / IMPORTANT FORMULAE I = Q/t V = I.R R S = R 1 + R 2 +.. 1/R P = 1/R 1 + 1/R 2 + P = V.I = I 2.R = V 2 /R Energy = V.I.t E = F/q Part A. Multiple Choice Questions 120.
More informationElectromagnetism Checklist
Electromagnetism Checklist Elementary Charge and Conservation of Charge 4.1.1A Convert from elementary charge to charge in coulombs What is the charge in coulombs on an object with an elementary charge
More information52 VOLTAGE, CURRENT, RESISTANCE, AND POWER
52 VOLTAGE, CURRENT, RESISTANCE, AND POWER 1. What is voltage, and what are its units? 2. What are some other possible terms for voltage? 3. Batteries create a potential difference. The potential/voltage
More informationRECALL?? Electricity concepts in Grade 9. Sources of electrical energy Current Voltage Resistance Power Circuits : Series and Parallel
Unit 3C Circuits RECALL?? Electricity concepts in Grade 9. Sources of electrical energy Current Voltage Resistance Power Circuits : Series and Parallel 2 Types of Electricity Electrostatics Electricity
More information(b) State the relation between work, charge and potential difference for an electric circuit.
Question Bank on ChElectricity 1. (a) Define the S.I unit of potential difference. (b) State the relation between work, charge and potential difference for an electric circuit. Calculate the potential
More informationPhysics Module Form 5 Chapter 2 Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT
2.1 CHARGE AND ELECTRIC CURRENT Van de Graaf 1. What is a Van de Graaff generator? Fill in each of the boxes the name of the part shown. A device that... and... at high voltage on its dome. dome 2. You
More informationLABORATORY 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 informationWhich of the following is the SI unit of gravitational field strength?
T52 [122 marks] 1. A cell is connected in series with a 2.0Ω resistor and a switch. The voltmeter is connected across the cell and reads 12V when the switch is open and 8.0V when the switch is closed.
More information1. What is heating effect of current? What is its cause?
GRADE: X PHYSICS (ELECTRICITY) DOMESTIC ELECTRIC CIRCUITS: SERIES OR PARALLEL Disadvantages of series circuits for domestic wiring : In series circuit, if one electrical appliance stops working, due to
More informationChapter 33  Electric Fields and Potential. Chapter 34  Electric Current
Chapter 33  Electric Fields and Potential Chapter 34  Electric Current Electric Force acts through a field An electric field surrounds every electric charge. It exerts a force that causes electric charges
More informationElectric Current. Volta
Electric Current Galvani Volta In the late 1700's Luigi Galvani and Alessandro Volta carried out experiements dealing with the contraction of frogs' leg muscles. Volta's work led to the invention of the
More informationELECTRIC CIRCUITS. Checklist. Exam Questions
ELECTRIC CIRCUITS Checklist Make sure you can. State Ohm's law in words. Determine relationship between current, potential difference and resistance at constant temperature using a simple circuit Draw,
More informationElectricity. dronstudy.com
Electricity Electricity is a basic part of our nature and it is one of our most widely used forms of energy. We use electricity virtually every minute of every day for example in lighting, heating, refrigeration,
More informationCalculate the total resistance of this combination. (3)
1 The circuit shows a combination of three resistors. 22 Ω 47 Ω 620 Ω Calculate the total resistance of this combination. Total resistance = (Total for Question = 3 marks) 2 (a) Sketch a graph to show
More informationPhysics Module Form 5 Chapter 2 Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT
2.1 CHARGE AND ELECTRIC CURRENT Van de Graaf 1. What is a Van de Graaff generator? Fill in each of the boxes the name of the part shown. A device that produces and store electric charges at high voltage
More informationElectricity Test Review
Electricity Test Review Definitions; Series Circuit, Parallel Circuit, Equivalent Resistance, Fuse, Circuit Breaker, kilowatt hour, load, short circuit, dry cell, wet cell, fuel cells, solar cells, fossil
More informationElectrodynamics. Review 8
Unit 8 eview: Electrodynamics eview 8 Electrodynamics 1. A 9.0 V battery is connected to a lightbulb which has a current of 0.5 A flowing through it. a. How much power is delivered to the b. How much energy
More informationELECTRICITY. Prepared by: M. S. KumarSwamy, TGT(Maths) Page
ELECTRICITY 1. Name a device that helps to maintain a potential difference across a conductor. Cell or battery 2. Define 1 volt. Express it in terms of SI unit of work and charge calculate the amount of
More informationA Review of Circuitry
1 A Review of Circuitry There is an attractive force between a positive and a negative charge. In order to separate these charges, a force at least equal to the attractive force must be applied to one
More informationAP Physics Electricity and Magnetism #3 Capacitors, Resistors, Ohm s Law, Electric Power
Name Period AP Physics Electricity and Magnetism #3 Capacitors, Resistors, Ohm s Law, Electric Power Dr. Campbell 1. The two plates of a capacitor hold +2500 µc and 2500 µc of charge, respectively, when
More informationReview. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When more devices are added to a series circuit, the total circuit resistance: a.
More informationUnit 6 Current Electricity and Circuits
Unit 6 Current Electricity and Circuits 2 Types of Electricity Electricity that in motion. Electricity that in motion. Occurs whenever an moves through a. 2 Types of Current Electricity Electricity that
More informationTSOKOS LSN 51 TO 55 TEST REVIEW
IB HYSICS Name: DEIL HYSICS eriod: Date: # Marks: BADDEST CLASS ON CAMUS TSOKOS LSN 51 TO 55 TEST REIEW 4. This question is about forces on charged particles. (a) (b) A charged particle is situated in
More informationELECTRICITY. Electric Circuit. What do you already know about it? Do Smarty Demo 5/30/2010. Electric Current. Voltage? Resistance? Current?
ELECTRICITY What do you already know about it? Voltage? Resistance? Current? Do Smarty Demo 1 Electric Circuit A path over which electrons travel, out through the negative terminal, through the conductor,
More informationLook over Chapter 26 sections 17 Examples 3, 7. Look over Chapter 18 sections 15, 8 over examples 1, 2, 5, 8, 9,
Look over Chapter 26 sections 17 Examples 3, 7 Look over Chapter 18 sections 15, 8 over examples 1, 2, 5, 8, 9, 1)How to find a current in a wire. 2)What the Current Density and Draft Speed are. 3)What
More informationObjects usually are charged up through the transfer of electrons from one object to the other.
1 Part 1: Electric Force Review of Vectors Review your vectors! You should know how to convert from polar form to component form and vice versa add and subtract vectors multiply vectors by scalars Find
More informationExam 1PHYS 102Spring 2013
ame: Class: Date: Exam 1PHYS 102Spring 2013 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A metallic object holds a charge of 3.8 10 6 C. What total
More informationSIR MICHELANGELO REFALO
SIR MICHELANGELO REFALO SIXTH FORM Annual Exam 2014 Subject: PHYSICS INT. 1 st Year Time: 2 hrs. Answer All Questions Where necessary assume the acceleration due to gravity, g = 10m/s 1) A basketball player
More informationChapter 21 Electric Current and Circuits
Chapter 21 Electric Current and Circuits 1 As an introduction to this chapter you should view the following movie. If you cannot click on the link, then copy it and paste it into your web browser. http://www.ionaphysics.org/movies/vir.mp4
More informationThey keep the voltage the same and use this circuit to measure the current. Variable resistor. Reading on ammeter in amps
1 Ksenia and Eva investigate five different variable resistors. They set each variable resistor to the maximum resistance. They keep the voltage the same and use this circuit to measure the current. A
More informationStatic Electricity. Electric Field. the net accumulation of electric charges on an object
Static Electricity the net accumulation of electric charges on an object Electric Field force exerted by an e  on anything that has an electric charge opposite charges attract like charges repel Static
More informationCLASS X ELECTRICITY
Conductor Insulator: Materia Materials through which electric current cannot pass are called insulators. Electric Circuit: A continuous a CLASS X ELECTRICITY als through which electric current can pass
More informationOhms Law. V = IR V = voltage in volts (aka potential difference) I = Current in amps R = resistance in ohms (Ω)
Ohms Law V = IR V = voltage in volts (aka potential difference) I = Current in amps R = resistance in ohms (Ω) Current How would you define it? Current the movement of electric charge through a medium
More informationElectricity Courseware Instructions
Physics Electricity Courseware Instructions This courseware acts as a supplement to the classroom instruction. The five sections on the following slide link to the topic areas. Following the topic area
More informationElectric Currents and Simple Circuits
1 Electric Currents and Simple Circuits Electrons can flow along inside a metal wire if there is an Efield present to push them along ( F= qe). The flow of electrons in a wire is similar to the flow
More informationAn ion follows a circular path in a uniform magnetic field. Which single change decreases the radius of the path?
T51 [237 marks] 1. A circuit is formed by connecting a resistor between the terminals of a battery of electromotive force (emf) 6 V. The battery has internal resistance. Which statement is correct when
More informationAnswer Key. Chapter 23. c. What is the current through each resistor?
Chapter 23. Three 2.0 resistors are connected in series to a 50.0 power source. a. What is the equivalent resistance of the circuit? R R R 2 R 3 2.0 2.0 2.0 36.0 b. What is the current in the circuit?
More informationElectrical Circuits Question Paper 1
Electrical Circuits Question Paper 1 Level IGCSE Subject Physics Exam Board CIE Topic Electricity and Magnetism SubTopic Electrical Circuits Paper Type Alternative to Practical Booklet Question Paper
More informationPhysics 196 Final Test Point
Physics 196 Final Test  120 Point Name You need to complete six 5point problems and six 10point problems. Cross off one 5point problem and one 10point problem. 1. Two small silver spheres, each with
More informationPhysics for Scientists & Engineers 2
Review The resistance R of a device is given by Physics for Scientists & Engineers 2 Spring Semester 2005 Lecture 8 R =! L A ρ is resistivity of the material from which the device is constructed L is the
More informationCurrent Electricity.notebook. December 17, 2012
1 Circuit Diagrams and Assembly 1. Draw a circuit diagram containing a battery, a single throw switch, and a light. 2. Once the diagram has been checked by your teacher, assemble the circuit. Keep the
More informationTRANSFORMERS B O O K P G
TRANSFORMERS B O O K P G. 4 4 4449 REVIEW The RMS equivalent current is defined as the dc that will provide the same power in the resistor as the ac does on average P average = I 2 RMS R = 1 2 I 0 2 R=
More informationKE = 8 10 J d) 2.4 x B 50V e) 1.14 x J
Phys 4: College Physics Key Name MULTPLE CHOCE 1) 4 How much kinetic energy will an electron need to get from point (at a potential of +0 ) to point B (at a potential of +50 ) in the figure below? 0 a)
More informationChapter 17 Electric Current and Resistance Pearson Education, Inc.c
Chapter 17 Electric Current and Resistance 2010 Pearson Education, Inc.c 1 Units of Chapter 17 Batteries and Direct Current Current and Drift Velocity Resistance and Ohm s Law Electric Power 2010 Pearson
More informationNational 5 Physics Solutions to Electricity & Energy exam questions
National 5 Physics Solutions to Electricity & Energy exam questions 1. (a) [number and unit must be correct] (b) (i) [number and unit must be correct] (ii) [number and unit must be correct] [or calculate
More informationBook Page cgrahamphysics.com Transformers
Book Page 444449 Transformers Review The RMS equivalent current is defined as the dc that will provide the same power in the resistor as the ac does on average P average = I 2 RMS R = 1 2 I 0 2 R= V RMS
More informationANSWERS AND MARK SCHEMES. (a) (i) 0.4 A 1. (ii) 0.4 A 1. (b) (i) potential difference = current resistance V 1. (ii) 1.6 V 1
QUESTIONSHEET 1 (a) (i) 0.4 A 1 (ii) 0.4 A 1 (b) (i) potential difference = current resistance 1 2.4 V 1 (ii) 1.6 V 1 (c) showing all working 1 correct answer with units for total resistance: 16 Ω 1 calculate
More informationElectric Charge. Electric Charge ( q ) unbalanced charges positive and negative charges. n Units Coulombs (C)
Electric Charge Electric Charge ( q ) unbalanced charges positive and negative charges n Units Coulombs (C) Electric Charge How do objects become charged? Types of materials Conductors materials in which
More informationElectroscope Used to are transferred to the and Foil becomes and
Electricity Notes Chapter 17 Section 1: Electric Charge and Forces Electric charge is a variety of independent all with one single name. Electricity is related to, and both () and (+) carry a charge.
More informationCoulomb s constant k = 9x10 9 N m 2 /C 2
1 Part 2: Electric Potential 2.1: Potential (Voltage) & Potential Energy q 2 Potential Energy of Point Charges Symbol U mks units [Joules = J] q 1 r Two point charges share an electric potential energy
More informationQuestion 3: How is the electric potential difference between the two points defined? State its S.I. unit.
EXERCISE (8 A) Question : Define the term current and state its S.I unit. Solution : Current is defined as the rate of flow of charge. I = Q/t Its S.I. unit is Ampere. Question 2: Define the term electric
More informationWhat colour is the insulation around the wire connected to the live pin inside the plug? ... (1) (1)
Q. Diagram shows a hairdryer. Diagram 2 shows how the heaters and fan of the hairdryer are connected to a 3pin plug. The hairdryer does not have an earth wire. (a) What colour is the insulation around
More informationWhat is electricity? Charges that could be either positive or negative and that they could be transferred from one object to another.
Electricity What is electricity? Charges that could be either positive or negative and that they could be transferred from one object to another. What is electrical charge Protons carry positive charges
More informationPhysics 6B Summer 2007 Final
Physics 6B Summer 2007 Final Question 1 An electron passes through two rectangular regions that contain uniform magnetic fields, B 1 and B 2. The field B 1 is stronger than the field B 2. Each field fills
More informationCircuits Capacitance of a parallelplate capacitor : C = κ ε o A / d. (ρ = resistivity, L = length, A = crosssectional area) Resistance : R = ρ L / A
k = 9.0 x 109 N m2 / C2 e = 1.60 x 1019 C ε o = 8.85 x 1012 C2 / N m2 Coulomb s law: F = k q Q / r2 (unlike charges attract, like charges repel) Electric field from a point charge : E = k q / r2 ( towards
More informationSection 1 Electric Charge and Force
CHAPTER OUTLINE Section 1 Electric Charge and Force Key Idea questions > What are the different kinds of electric charge? > How do materials become charged when rubbed together? > What force is responsible
More informationELECTRICITY UNIT REVIEW
ELECTRICITY UNIT REVIEW S1304: How does the Atomic Model help to explain static electricity? 1. Which best describes static electricity? a) charges that can be collected and held in one place b) charges
More informationRead Chapter 7; pages:
Forces Read Chapter 7; pages: 191221 Objectives:  Describe how electrical charges exert forces on each other; Compare the strengths of electric and gravitational forces; Distinguish between conductors
More informationDownloaded from
CHAPTER 12 ELECTRICITY Electricity is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena such
More information7.1 ANALYSING ELECTRIC FIELDS AND CHARGE FLOW
7.1 ANALYSING ELECTRIC FIELDS AND CHARGE FLOW State the relationship between electron and electric current Where does charge come from? Matter is made up of tiny particles called atoms. At the center of
More information8. Electric circuit: The closed path along which electric current flows is called an electric circuit.
GIST OF THE LESSON 1. Positive and negative charges: The charge acquired by a glass rod when rubbed with silk is called positive charge and the charge acquired by an ebonite rod when rubbed with wool is
More informationWaves Final Review. Name: Date: 1. On which one of the following graphs is the wavelength λ and the amplitude a of a wave correctly represented?
Name: Date: Waves Final Review 1. On which one of the following graphs is the wavelength λ and the amplitude a of a wave correctly represented? A. Displacement λ a Distance along wave B. Displacement λ
More informationWhat does it mean for an object to be charged? What are charges? What is an atom?
What does it mean for an object to be charged? What are charges? What is an atom? What are the components of an atom? Define the following: Electric Conductor Electric Insulator Define the following: Electric
More informationElectricity & Magnetism
Electricity & Magnetism D.C. Circuits Marline Kurishingal Note : This chapter includes only D.C. In AS syllabus A.C is not included. Recap... Electrical Circuit Symbols : Draw and interpret circuit diagrams
More informationAP Physics C  E & M
Slide 1 / 27 Slide 2 / 27 AP Physics C  E & M Current, Resistance & Electromotive Force 20151205 www.njctl.org Slide 3 / 27 Electric Current Electric Current is defined as the movement of charge from
More informationCHAPTER 1 ELECTRICITY
CHAPTER 1 ELECTRICITY Electric Current: The amount of charge flowing through a particular area in unit time. In other words, it is the rate of flow of electric charges. Electric Circuit: Electric circuit
More information6. In a dry cell electrical energy is obtained due to the conversion of:
1. If a wire of uniform area of cross section is cut into two halves (equal in size), the resistivity of each part will be: a) Halved. b) Doubled. c) Becomes four times its initial value. d) Remains the
More information4.2.1 Current, potential difference and resistance
4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design
More informationInsulators Nonmetals are very good insulators; their electrons are very tightly bonded and cannot move.
SESSION 11: ELECTRIC CIRCUITS Key Concepts Resistance and Ohm s laws Ohmic and nonohmic conductors Series and parallel connection Energy in an electric circuit Xplanation 1. CONDUCTORS AND INSULATORS
More informationSTUDY GUIDE CHAPTER 5 ELECTRICITY AND MAGNETISM 1) ASSOCIATE ELEMENTARY PARTICLES WITH THEIR ELECTRICAL CHARGE
Name Date STUDY GUIDE CHAPTER 5 ELECTRICITY AND MAGNETISM 1) ASSOCIATE ELEMENTARY PARTICLES WITH THEIR ELECTRICAL CHARGE Scientists now know that an atom is composed of even smaller particles of matter:
More informationEquivalent resistance in Series Combination
Combination of Resistances There are two methods of joining the resistors together. SERIES CONNECTION An electric circuit in which three resistors having resistances R1, R2 and R3, respectively, are joined
More information16.1 Electrical Current
16.1 Electrical Current Electric Current Electric Current When the ends of an electric conductor are at different electric potentials, charge flows from one end to the other Flow of Charge Charge flows
More informationNama :.. Kelas/No Absen :
Nama :.. Kelas/No Absen : TASK 2 : CURRENT AND RESISTANCE 1. A car battery is rated at 80 A h. An amperehour is a unit of: A. power B. energy C. current D. charge E. force 2. Current has units: A. kilowatthour
More informationGreek Letter Omega Ω = Ohm (Volts per Ampere)
) What is electric current? Flow of Electric Charge 2) What is the unit we use for electric current? Amperes (Coulombs per Second) 3) What is electrical resistance? Resistance to Electric Current 4) What
More informationAlgebra Based Physics
Page 1 of 105 Algebra Based Physics Electric Current & DC Circuits 20151006 www.njctl.org Page 2 of 105 Electric Current & DC Circuits Circuits Conductors Resistivity and Resistance Circuit Diagrams
More informationContinuous flow of electric charges. Current Electricity
Continuous flow of electric charges Current Electricity Did You Know? The voltage across a muscle cell in your body is about 70 millivolts. A millivolt (mv) is one thousandth of a volt. AC and DC DC Direct
More informationElectric Current & DC Circuits
Electric Current & DC Circuits Circuits Click on the topic to go to that section Conductors Resistivity and Resistance Circuit Diagrams Measurement EMF & Terminal Voltage Kirchhoff's Rules Capacitors*
More informationWhat is an Electric Current?
Electric Circuits NTODUCTON: Electrical circuits are part of everyday human life. e.g. Electric toasters, electric kettle, electric stoves All electrical devices need electric current to operate. n this
More informationa. Clockwise. b. Counterclockwise. c. Out of the board. d. Into the board. e. There will be no current induced in the wire
Physics 1B Winter 2012: Final Exam For Practice Version A 1 Closed book. No work needs to be shown for multiplechoice questions. The first 10 questions are the makeup Quiz. The remaining questions are
More informationEF 152 Exam 2 (E&M)  Spring, 2018 Page 1 Version: A Copy 480
EF 152 Exam 2 (E&M)  Spring, 2018 Page 1 Version: A Copy 480 Name: Section: Seat Assignment: Specify your EXAM ID on the right. Use 000 if you do not know your exam ID. 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5
More informationhttps://www.youtube.com/watch?v=yc2363miqs
https://www.youtube.com/watch?v=yc2363miqs SCIENCE 9 UNIT 3 ELECTRICITY Remember: In the last unit we learned that all matter is made up of atoms atoms have subatomic particles called, protons, neutrons
More informationFor an electric current to flow between two points, two conditions must be met.
ELECTROSTATICS LAB Electric Circuits For an electric current to flow between two points, two conditions must be met. 1. There must be a conducting path between the points along which the charges can move.
More informationHandout 5: Current and resistance. Electric current and current density
1 Handout 5: Current and resistance Electric current and current density Figure 1 shows a flow of positive charge. Electric current is caused by the flow of electric charge and is defined to be equal to
More informationRevision checklist SP10. SP10 Electricity and Circuits. SP10a Electric circuits. SP10b Current and potential difference
Electricity and Circuits a Electric circuits Describe the basic structure of an atom (positions, relative masses and relative charges of protons, neutrons and electrons). Recognise the circuit symbols
More information4.2.1 Current, potential difference and resistance Standard circuit diagram symbols. Content. Key opportunities for skills development WS 1.
4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design
More informationCh 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance?
Ch 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance? 33. How many 100W lightbulbs can you use in a 120V
More informationElectrical Circuits. Winchester College Physics. makptb. c D. Common Time man. 3rd year Revision Test
Name... Set... Don.... manner~ man makptb Winchester College Physics 3rd year Revision Test Electrical Circuits Common Time 2011 Mark multiple choice answers with a cross (X) using the box below. I A B
More informationReadings Distance (m) Time (s) Velocity (m s 1 ) Force (N) 1 0,15 1 0,15 1,02 2 0,30 1,5 0,2 0,51 3 0,45 1,75 0,257 0,26 4 1,00 No effect 0 0
Contextual questions 1 Two identical, light, graphitecoated balls, X and Y, both have a charge of 3 1012 C The balls are fixed to a horizontal, insulated X Y 5 cm surface The distance between the centres
More informationMaterials Needed 1 DCell battery 6 6inch pieces of wire 3 flashlight light bulbs 3 light bulb holders (optional)
Experiment Module 3 Electric Circuits Objective/Introduction This experiment explores building simple circuits and testing Ohm s Law. Students will start lighting a simple light bulb. Then they will explore
More informationPEP 2017 Assignment 12
of the filament?.16.. Aductile metal wire has resistance. What will be the resistance of this wire in terms of if it is stretched to three times its original length, assuming that the density and resistivity
More informationResistivity and Temperature Coefficients (at 20 C)
Homework # 4 Resistivity and Temperature Coefficients (at 0 C) Substance Resistivity, Temperature ( m) Coefficient, (C )  Conductors Silver.59 x 00.006 Copper.6 x 00.006 Aluminum.65 x 00.0049 Tungsten
More informationThe child becomes electrically charged when he goes down the slide
P4 Revision Questions Q. The figure below shows a slide in a children s playground. (a) A child of mass 8 kilograms goes down the slide. The vertical distance from the top to the bottom of the slide is
More information1. Which of the following appliances makes use of the heating effect of electricity?
Name: ( ) Class: Date: ASSIGNMENT Chapter 15: Practical Electricity 25 MultipleChoice Questions (10 marks) 1. Which of the following appliances makes use of the heating effect of electricity? A Electric
More informationSuperconductors A class of materials and compounds whose resistances fall to virtually zero below a certain temperature, T C T C is called the critical temperature The graph is the same as a normal metal
More information