# 2. Basic Components and Electrical Circuits

Size: px
Start display at page:

Transcription

1 1 2. Basic Components and Electrical Circuits 2.1 Units and Scales The International System of Units (SI) defines 6 principal units from which the units of all other physical quantities can be derived Table 2.1 SI base units Basic Quantity Unit Symbol Length Mass Time Electric current Thermodynamic temperature Luminous intensity meter kilogram second ampere kelvin candela m kg s A K cd The SI unit of work or energy is the joule (J), which equals to a kg m 2 s -2 in SI base units The SI unit of power is equivalent to one joule per second

2 2 The SI unit uses prefixes based on the power of 10 to relate larger and smaller units to the basic unit Table 2.2 SI prefixes Basic Quantity Name Symbol tera giga mega kilo centi milli micro nano pico T G M k c m n p

3 3 2.2 Circuit Variables Charge Electric charge is an electrical property of the atomic particles of which matter consists, measured in coulombs (C) The charge of an electron is X C The coulomb is a large unit for charges such that in 1 C of charge, there are 1/(1.602 X )=6.24 X electrons The realistic or laboratory values of charges are on the order pc, nc, and μc Current Electric current is a flow of electric charge measured in ampere (A) note that 1 ampere (A) is equal to 1 coulombs per second (C/s)

4 4 The total charge transferred between time t 0 and t can be expressed as There are several different types of current Direct current (dc) Sinusoidal current (ac) Exponential current Damped sinusoidal currents Representation of current in circuit analysis

5 5 Practice In the wire of shown figure, electrons are moving left to right to create a current of 1 ma. Determine and Ans: the current is in the opposite direction to flow of electrons Voltage Voltage or potential difference measured in volts (V) is the energy required to move a unit of charge through an element note that 1 volt (V) is equal to 1 joule per coulombs (J/C)

6 6 Representation of voltage in circuit analysis The plus (+) and minus (-) signs at the points a and b are used to define a reference direction (the voltage polarity) Similar to the electric current, a constant voltage is called a dc voltage, whereas a sinusoidal voltage (time-varying) is called an ac voltage For practical purposes, the power and energy are important measures in circuit analysis

7 Power Measured in watts (W) to indicate the average absorbing energy by a circuit element The sign of power + sign: the power is absorbed by the element (resistor) - sign: the power is supplied by the element (?) Since the energy can neither be created or dissipated (only transferred), the algebraic sum of powers in a circuit, at any instant of time, must be zero

8 8 Determine p 1 Ans: Energy The energy absorbed or supplied by an element from time 0 to t is Electricity bills:: The electric power utility companies measure energy in kilowatt-hours (kwh), where 1 kwh = 3600 kj

9 9 2.3 Voltage and Current Sources There are two types of circuit elements: Active elements (supplying energies), e.g., electric generator, batteries Passive elements (absorbing energy), e.g., resistors, capacitors, and inductors The passive elements can be classified according to the relationship of the current through it to the voltage Resistor, Capacitor, Inductor, Voltage and current sources: Voltage sources provides the circuit with a specified voltage Current source provides the circuit with a specified current

10 10 Independent voltage source The source is characterized by a terminal voltage which is completely independent of the current through it dc voltage source ac voltage source Independent current source The current through the element is completely independent of the voltage across it dc current source ac current source

11 11 Dependent sources The value of dependent sources depends on a voltage or currents of some other elements There are 4 different types of dependent sources current-controlled current source voltage-controlled current source voltage-controlled voltage source current-controlled voltage source Find v L Ans:

12 12 Dependent sources The value of dependent sources depends on a voltage or currents of some other elements There are 4 different types of dependent sources current-controlled current source voltage-controlled current source voltage-controlled voltage source current-controlled voltage source Find the power absorbed by each element in the circuit Ans:

13 Ohm's Law Ohm's law states the voltage across conducting materials is directly proportional to the current flowing through the material, or where R is the resistance slope=r (V/A) The unit of the resistance is Ohm (Ω) The Resistor has a linear relation between the applied voltage and the current The current goes from a higher potential to a lower potential The power absorbed by the resistor can be expressed as The resistor is a passive element that cannot deliver or store energy Find i and R, if v=-10 V and R is absorbing 0.1 W Ans:

14 14 The resistance of any cylindrical object is given as l Material with resistivity ρ A For a linear resistor, the ratio of the current to the voltage is called the conductance The SI unit of the electrical conductance G is siemens (S) Homework Assignment 1 P2.11, P2.12, P2.15, P2.17, P2.20, P2.22, P2.23, P2.26, P2.31, P2.32, P2.33, and P2.35

### Basic Electrical Circuits Analysis ECE 221

Basic Electrical Circuits Analysis ECE 221 PhD. Khodr Saaifan http://trsys.faculty.jacobs-university.de k.saaifan@jacobs-university.de 1 2 Reference: Electric Circuits, 8th Edition James W. Nilsson, and

### 8/17/2016. Summary. Summary. Summary. Chapter 1 Quantities and Units. Passive Components. SI Fundamental Units. Some Important Electrical Units

Passive Components Chapter 1 Quantities and Units Welcome to the Principles of Electric Circuits. You will study important ideas that are used in electronics. You may already be familiar with a few of

### DC Circuits: Basic Concepts Dr. Hasan Demirel

DC Circuits: Basic Concepts Dr. Hasan Demirel An electric circuit is an interconnection of electrical elements. A simple electric circuit Electric circuit of a radio receiver Six basic SI units and one

### Fundamental of Electrical circuits

Fundamental of Electrical circuits 1 Course Description: Electrical units and definitions: Voltage, current, power, energy, circuit elements: resistors, capacitors, inductors, independent and dependent

### BFF1303: ELECTRICAL / ELECTRONICS ENGINEERING

BFF1303: ELECTRICAL / ELECTRONICS ENGINEERING Introduction Ismail Mohd Khairuddin, Zulkifil Md Yusof Faculty of Manufacturing Engineering Universiti Malaysia Pahang Introduction BFF1303 ELECTRICAL/ELECTRONICS

### CHAPTER ONE. 1.1 International System of Units and scientific notation : Basic Units: Quantity Basic unit Symbol as shown in table 1

CHAPTER ONE 1.1 International System of Units and scientific notation : 1.1.1 Basic Units: Quantity Basic unit Symbol as shown in table 1 Table 1 1.1.2 Some scientific notations : as shown in table 2 Table

### Introduction to Electrical and Computer Engineering. International System of Units (SI)

Introduction to Electrical and Computer Engineering Basic Circuits and Simulation Basic Circuits and Simulation (1 of 22) International System of Units (SI) Length: meter (m) Mass: kilogram (kg) Time:

### Charge The most basic quantity in an electric circuit is the electric charge. Charge is an electrical property of the atomic particles of which matter

Basic Concepts of DC Circuits Introduction An electric circuit is an interconnection of electrical elements. Systems of Units 1 Charge The most basic quantity in an electric circuit is the electric charge.

### ECE 2100 Circuit Analysis

ECE 2100 Circuit Analysis Lesson 3 Chapter 2 Ohm s Law Network Topology: nodes, branches, and loops Daniel M. Litynski, Ph.D. http://homepages.wmich.edu/~dlitynsk/ esistance ESISTANCE = Physical property

### Unit 1. ET Unit 1. Quantities, Units, and Electrical Safety. Electronics Fundamentals Circuits, Devices and Applications - Floyd

ET 115 - Unit 1 Quantities, Units, and Electrical Safety Scientific and Engineering Notation Very large and very small numbers are represented with scientific and engineering notation. 47,000,000 = 4.7

### Lecture #3. Review: Power

Lecture #3 OUTLINE Power calculations Circuit elements Voltage and current sources Electrical resistance (Ohm s law) Kirchhoff s laws Reading Chapter 2 Lecture 3, Slide 1 Review: Power If an element is

### Chapter 1. Chapter 1

Chapter 1 Scientific and Engineering Notation Very large and very small numbers are represented with scientific and engineering notation. 47,000,000 = 4.7 x 10 7 (Scientific Notation) = 47 x 10 6 (Engineering

### Electricity. From the word Elektron Greek for amber

Electricity From the word Elektron Greek for amber Electrical systems have two main objectives: To gather, store, process, transport information & Energy To distribute and convert energy Electrical Engineering

### Coulomb 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

### Read Sections 1.10 and Appendix A-1 before viewing this slide show.

Read Sections 1.10 and Appendix A-1 before viewing this slide show. Unit 4 Measurement Basic Units The International System of Units (SI) (1.10) Current definitions of the seven base SI units Review of

### and in a simple circuit Part 2

Current, Resistance, and Voltage in a simple circuit Part 2 Electric Current Whenever electric charges of like signs move, an electric current is said to exist. Look at the charges flowing perpendicularly

### ELECTRICITY. 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,

### ES250: Electrical Science. HW1: Electric Circuit Variables, Elements and Kirchhoff s Laws

ES250: Electrical Science HW1: Electric Circuit Variables, Elements and Kirchhoff s Laws Introduction Engineers use electric circuits to solve problems that are important to modern society, such as: 1.

### ENGR 2405 Class No Electric Circuits I

ENGR 2405 Class No. 48056 Electric Circuits I Dr. R. Williams Ph.D. rube.williams@hccs.edu Electric Circuit An electric circuit is an interconnec9on of electrical elements Charge Charge is an electrical

### Chapter 1 Basic Concepts

Dr. Waleed Al-Hanafy waleed alhanafy@yahoo.com Faculty of Electronic Engineering, Menoufia Univ., Egypt MSA Summer Course: Electric Circuit Analysis I (ESE 233) Lecture no. 1 July 11, 2011 Overview 1 SI

### Electric Current. Note: Current has polarity. EECS 42, Spring 2005 Week 2a 1

Electric Current Definition: rate of positive charge flow Symbol: i Units: Coulombs per second Amperes (A) i = dq/dt where q = charge (in Coulombs), t = time (in seconds) Note: Current has polarity. EECS

### Current and Resistance

Current and Resistance 1 Define the current. Understand the microscopic description of current. Discuss the rat at which the power transfer to a device in an electric current. 2 2-1 Electric current 2-2

### Chapter 18 Electric Currents

Chapter 18 Electric Currents 1 The Electric Battery Volta discovered that electricity could be created if dissimilar metals were connected by a conductive solution called an electrolyte. This is a simple

### Lecture #2 Charge, Current, Energy, Voltage Power Kirchhoff s Current Law Kirchhoff s Voltage Law

EECS 42 Introduction to Electronics for Computer Science Andrew R. Neureuther Lecture #2 Charge, Current, Energy, Voltage Power Kirchhoff s Current Law Kirchhoff s Voltage Law Corrections Slide 3 and 9

### Chapter 1 Circuit Variables

Chapter 1 Circuit Variables 1.1 Electrical Engineering: An Overview 1.2 The International System of Units 1.3 Circuit Analysis: An Overview 1.4 Voltage and Current 1.5 The Ideal Basic Circuit Element 1.6

### Electric Current. Chapter 17. Electric Current, cont QUICK QUIZ Current and Resistance. Sections: 1, 3, 4, 6, 7, 9

Electric Current Chapter 17 Current and Resistance Sections: 1, 3, 4, 6, 7, 9 Whenever electric charges of like signs move, an electric current is said to exist The current is the rate at which the charge

### INDUSTRIAL ELECTRICITY

INDUSTRIAL ELECTRICITY TODAY S TOPICS: Introduction (cont) Scientific Notation DUE Mon 1/13 11:00am HOMEWORK 1 Reading quizzes 1 & 2 Worksheet 1 QUESTIONS?? Scantron Use for reading quizzes only Don t

### Chapter 17. Current and Resistance. Sections: 1, 3, 4, 6, 7, 9

Chapter 17 Current and Resistance Sections: 1, 3, 4, 6, 7, 9 Equations: 2 2 1 e r q q F = k 2 e o r Q k q F E = = I R V = A L R ρ = )] ( 1 [ o o T T + = α ρ ρ V I V t Q P = = R V R I P 2 2 ) ( = = C Q

### ECE2262 Electric Circuits. Chapter 1: Basic Concepts. Overview of the material discussed in ENG 1450

ECE2262 Electric Circuits Chapter 1: Basic Concepts Overview of the material discussed in ENG 1450 1 Circuit Analysis 2 Lab -ECE 2262 3 LN - ECE 2262 Basic Quantities: Current, Voltage, Energy, Power The

### Measurements and Calculations. Chapter 2

Measurements and Calculations Chapter 2 Scientific Method Observing/Collecting Data Hypothesis Testing Theorizing Publishing Units of Measurement All measurements require two parts 1. Quantity 2. Unit

### Chapter 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

### Circuit Analysis I (ENGR 2405) Chapter 1 Review: Charge, Current, Voltage, Power

Circuit Analysis I (ENGR 2405) Chapter 1 Review: Charge, Current, Voltage, Power What is a circuit? An electric circuit is an interconnection of electrical elements. It may consist of only two elements

### Chapter 4. Chapter 4

Chapter 4 Energy 1 n Energy, W, is the ability to do work and is measured in joules. One joule is the work done when a force of one newton is applied through a distance of one meter. The symbol for energy,

### Chapter 2. Engr228 Circuit Analysis. Dr Curtis Nelson

Chapter 2 Engr228 Circuit Analysis Dr Curtis Nelson Chapter 2 Objectives Understand symbols and behavior of the following circuit elements: Independent voltage and current sources; Dependent voltage and

### PHYSICS 1 (LIFE SCIENCES) ELECTRICITY

THE UNIVERSITY OF SYDNEY PHYSICS 1 (LIFE SCIENCES) ELECTRICITY ELEVENTH EDITION SI stands for Système International SI UNITS SI base units Quantity Unit Symbol Mass kilogram kg Distance metre m Time second

### Objects 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

### Engineering Fundamentals and Problem Solving, 6e

Engineering Fundamentals and Problem Solving, 6e Chapter 17 Electrical Circuits Chapter Objectives Compute the equivalent resistance of resistors in series and in parallel Apply Ohm s law to a resistive

### EXPERIMENT 12 OHM S LAW

EXPERIMENT 12 OHM S LAW INTRODUCTION: We will study electricity as a flow of electric charge, sometimes making analogies to the flow of water through a pipe. In order for electric charge to flow a complete

### Standard physical units

Standard physical units SI base units (SI = Système International d Unités) Basic quantity SI base unit Name Symbol Length metre m Mass kilogram kg Time second s Electric current ampere A Temperature (thermodynamic

### Chapter 18. Direct Current Circuits

Chapter 18 Direct Current Circuits Sources of emf The source that maintains the current in a closed circuit is called a source of emf Any devices that increase the potential energy of charges circulating

### In which vector triangle does the vector Z show the magnitude and direction of vector X Y?

1 1 Which of the following pairs of units are both SI base units? ampere, degree celsius ampere, kelvin coulomb, degree celsius coulomb, kelvin 2 The diagram shows two vectors and Y. Y In which vector

### Notes on Electricity (Circuits)

A circuit is defined to be a collection of energy-givers (active elements) and energy-takers (passive elements) that form a closed path (or complete path) through which electrical current can flow. The

### Chapter 25 Electric Currents and. Copyright 2009 Pearson Education, Inc.

Chapter 25 Electric Currents and Resistance 25-1 The Electric Battery Volta discovered that electricity could be created if dissimilar metals were connected by a conductive solution called an electrolyte.

### UNITS AND DEFINITIONS RELATED TO BIOMECHANICAL AND ELECTROMYOGRAPHICAL MEASUREMENTS

APPENDIX B UNITS AND DEFINITIONS RELATED TO BIOMECHANICAL AND ELECTROMYOGRAPHICAL MEASUREMENTS All units used are SI (Système International d Unités). The system is based on seven well-defined base units

### Exact and Measured Numbers

EIE 240 Electrical and Electronic Measurement December 8, 2011 Werapon Chiracharit 1 Exact and Measured Numbers Exact numbers e.g. Ih have exactly 10 fingers and 10 toes. Any measurements e.g. a pen s

### Notes on Electricity (Circuits)

A circuit is defined to be a collection of energy-givers (batteries) and energy-takers (resistors, light bulbs, radios, etc.) that form a closed path (or complete path) through which electrical current

### International System of Units (SI)

Measurement International System of Units (SI) revised metric system proposed in 1960 widely used in science 7 base units SI Base Units Length Meter m Mass Kilogram kg Time Second s or sec Electrical current

### SI units are divided into 2 classes: base units (7) and derived units. Athens Programme Course CTU 1 - Metrology of Electrical Quantities.

Athens Programme Course CTU 1 - Metrology of Electrical Quantities The 11th CGPM (1960) adopted the name Système International d'unités (International System of Units, abbreviation SI), for the recommended

### Review. 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.

### UNIT & DIMENSIONS AND MEASUREMENT STRAIGHT LINES

UNIT & DIMENSIONS AND MEASUREMENT STRAIGHT LINES PHYSICAL QUANTITIES The quantities which can be measured by an instrument and by means of which we can describe the laws of physics are called physical

### 6. 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

### Chapter 1: Quantities and Units

Chapter 1: Quantities and Units Instructor: Jean-François MILLITHALER http://faculty.uml.edu/jeanfrancois_millithaler/funelec/spring2017 Slide 1 Power of Ten Base Exponent 10 x 10 4 = 1 x 10 4 = 10000

### Closed loop of moving charges (electrons move - flow of negative charges; positive ions move - flow of positive charges. Nucleus not moving)

Unit 2: Electricity and Magnetism Lesson 3: Simple Circuits Electric circuits transfer energy. Electrical energy is converted into light, heat, sound, mechanical work, etc. The byproduct of any circuit

### What 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

### Chapter 1 The Electric Force

Chapter 1 The Electric Force 1. Properties of the Electric Charges 1- There are two kinds of the electric charges in the nature, which are positive and negative charges. - The charges of opposite sign

### TY Physics Measurement Module 1

TY Physics Measurement Module 1 Introduction Units of measure were among the earliest tools invented by humans, they were needed for many tasks, such as constructing dwellings, fashioning clothes, or bartering

### APPENDIX D UNIT CONVERSION TABLES. Sl SYMBOLS AND PREFIXES

UNIT CONVERSION TABLES Sl SYMBOLS AND PREFIXES BASE UNITS Quantity Unit Symbol Length Meter m Mass Kilogram kg Time Second s Electric current Ampere A Thermodynamic temperature Kelvin K Amount of substance

### Capacitance. A different kind of capacitor: Work must be done to charge a capacitor. Capacitors in circuits. Capacitor connected to a battery

Capacitance The ratio C = Q/V is a conductor s self capacitance Units of capacitance: Coulomb/Volt = Farad A capacitor is made of two conductors with equal but opposite charge Capacitance depends on shape

### ENGG 225. David Ng. Winter January 9, Circuits, Currents, and Voltages... 5

ENGG 225 David Ng Winter 2017 Contents 1 January 9, 2017 5 1.1 Circuits, Currents, and Voltages.................... 5 2 January 11, 2017 6 2.1 Ideal Basic Circuit Elements....................... 6 3 January

### Lecture January, 2011

Lecture 2 31 January, 2011 Announcements (1/31/11) 401B and 501B: Laboratory Meeting Tues Feb 1, 4 00-7 00 pm Electricity Test in 2 weeks (Feb 14) Today s lecture 3 00-4 00, 5 00-6 00 3x5 Cards Foundations:

### SI base units. SI : Système International d'unités (International System of Units)

2 Units SI base units SI : Système International d'unités (International System of Units) Unite name (symbol) Definition established mass kilogram (kg) The mass of the International Prototype of the Kilogram

### CHAPTER 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

### What are these standards? Who decides what they are? How many Standards should we have?

AP Physics Summer Work: Read the following notes from our first unit. Answer any questions. Do the Algebra Review Sheet. This will allow us to go through this unit very quickly upon your return. PHYSICAL

### Physics 7B-1 (A/B) Professor Cebra. Winter 2010 Lecture 2. Simple Circuits. Slide 1 of 20

Physics 7B-1 (A/B) Professor Cebra Winter 2010 Lecture 2 Simple Circuits Slide 1 of 20 Conservation of Energy Density In the First lecture, we started with energy conservation. We divided by volume (making

### Physics 1214 Chapter 19: Current, Resistance, and Direct-Current Circuits

Physics 1214 Chapter 19: Current, Resistance, and Direct-Current Circuits 1 Current current: (also called electric current) is an motion of charge from one region of a conductor to another. Current When

### 1.1 - Scientific Theory

1.1 - Scientific Theory Babylonians/Egyptians Observation for the practical Religious Agriculture Pseudosciences (science + nonscience) Alchemy Astrology, etc. Greeks Good Theoreticians (knowledge for

### Chapter 21 Electric Current and Direct- Current Circuits

Chapter 21 Electric Current and Direct- Current Circuits 1 Overview of Chapter 21 Electric Current and Resistance Energy and Power in Electric Circuits Resistors in Series and Parallel Kirchhoff s Rules

### Test Review Electricity

Name: Date: 1. An operating television set draws 0.71 ampere of current when connected to a 120-volt outlet. Calculate the time it takes the television to consume 3.0 10 5 joules of electric energy. [Show

### Section 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

### Scientific Measurement

A measurement is a quantity that has both a number and a unit Some numbers encountered in science can be either very large or very small We use scientific notation to make those numbers easier to work

### (b) State the relation between work, charge and potential difference for an electric circuit.

Question Bank on Ch-Electricity 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

### Physics 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

### International System of Units (SI)

Measurement International System of Units (SI) revised metric system proposed in 1960 widely used in science 7 base units SI Base Units Length Meter m Mass Kilogram kg Time Electrical current Second Ampere

### Representation of SI Units and Prefixes

CANopen Representation of SI Units and Prefixes CiA Draft Recommendation DRP-303-2 Version 1.1 Date: 19. January 2000 CAN in Automation (CiA) 1 1 Scope This document recommends the representation of the

### ELECTRONICS. EE 42/100 Lecture 2: Charge, Current, Voltage, and Circuits. Revised 1/18/2012 (9:04PM) Prof. Ali M. Niknejad

A. M. Niknejad University of California, Berkeley EE 100 / 42 Lecture 2 p. 1/26 EE 42/100 Lecture 2: Charge, Current, Voltage, and Circuits ELECTRONICS Revised 1/18/2012 (9:04PM) Prof. Ali M. Niknejad

### Measurement and Units. An Introduction to Chemistry By Mark Bishop

Measurement and Units An Introduction to Chemistry By Mark Bishop Values from Measurements A value is a quantitative description that includes both a unit and a number. For 100 meters, the meter is a unit

### General Physics. Prefixes. Aims: The Greek Alphabet Units. Provided Data

General Physics Aims: The Greek Alphabet Units Prefixes Provided Data Name Upper Case Lower Case The Greek Alphabet When writing equations and defining terms, letters from the Greek alphabet are often

### EXP. NO. 3 Power on (resistive inductive & capacitive) load Series connection

OBJECT: To examine the power distribution on (R, L, C) series circuit. APPARATUS 1-signal function generator 2- Oscilloscope, A.V.O meter 3- Resisters & inductor &capacitor THEORY the following form for

### GCE Physics Transition Work

GCE Physics Transition Work Mr Spafford: Mathematics and Waves Name: NB: Thanks go to the other physics teachers over the years, from whose work this booklet has been compiled. Unfortunately, the source

### Version 001 CIRCUITS holland (1290) 1

Version CIRCUITS holland (9) This print-out should have questions Multiple-choice questions may continue on the next column or page find all choices before answering AP M 99 MC points The power dissipated

### E40M Charge, Current, Voltage and Electrical Circuits KCL, KVL, Power & Energy Flow. M. Horowitz, J. Plummer, R. Howe 1

E40M Charge, Current, Voltage and Electrical Circuits KCL, KVL, Power & Energy Flow M. Horowitz, J. Plummer, R. Howe 1 Reading For Topics In These Slides Chapter 1 in the course reader OR A&L 1.6-1.7 -

### Chapter 16. Current and Drift Speed. Electric Current, cont. Current and Drift Speed, cont. Current and Drift Speed, final

Chapter 6 Current, esistance, and Direct Current Circuits Electric Current Whenever electric charges of like signs move, an electric current is said to exist The current is the rate at which the charge

### Topics Covered in This Chapter:

Introduction to Powers of 10 Topics Covered in This Chapter: I-1: Scientific Notation I-2: Engineering Notation and Metric Prefixes I-3: Converting between Metric Prefixes I-4: Addition and Subtraction

### CH. I ME2560 STATICS General Principles GENERAL PRINCIPLES. Rigid body mechanics. Fluid mechanics

1. MECHANICS GENERAL PRINCIPLES Mechanics is the branch of physics (classic) that studies the state of rest or motion of bodies subjected to the action of forces. Rigid body mechanics Mechanics Deformable

### Lecture Outline Chapter 21. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.

Lecture Outline Chapter 21 Physics, 4 th Edition James S. Walker Chapter 21 Electric Current and Direct- Current Circuits Units of Chapter 21 Electric Current Resistance and Ohm s Law Energy and Power

### Chapter 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

### Physics 11. Unit 1 Mathematical Toolkits

Physics 11 Unit 1 Mathematical Toolkits 1 1.1 Measurement and scientific notations Système International d Unités (SI Units) The base units for measurement of fundamental quantities. Other units can be

### New Year 12 Students

New Year 12 Students As you may be aware there have been many changes to the way A-Levels are run in most subjects and science specifically has seen major changes. Here is a brief outline of the course:

### In the following information, you will study these three physical quantities as they relate to simple electrical circuits.

Module 7 Ohm's Law INTRODUCTION In this experiment, you will study Ohm's Law, the most fundamental relation used in the analysis of electrical circuits. Ohm's Law relates the quantities of voltage, electric

### SI UNITS AND SOME CONVERSION FACTORS. A. Woldai, B. Makkawi, and D. Al-Gobaisi International Center for Water and Energy Systems, Abu Dhabi, UAE

SI UNITS AND SOME CONVERSION FACTORS A. Woldai, B. Makkawi, and D. Al-Gobaisi International Center for Water and Energy Systems, Abu Dhabi, UAE Keywords : SI units, Dynamic viscosity, Surface tension,

### Circuits Practice Websheet 18.1

Circuits Practice Websheet 18.1 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. How much power is being dissipated by one of the 10-Ω resistors? a. 24

### EE-0001 PEEE Refresher Course. Week 1: Engineering Fundamentals

EE-000 PEEE efresher Course Week : Engineering Fundamentals Engineering Fundamentals Bentley Chapters & Camara Chapters,, & 3 Electrical Quantities Energy (work), power, charge, current Electrostatic pressure,

### PREFIXES AND SYMBOLS SI Prefixes you need to know by heart

PREFIXES AND SYMBOLS SI Prefixes you need to know by heart Prefix Symbol In 10 n in Decimal Forms Giga G 10 9 1,000,000,000 Mega M 10 6 1,000,000 kilo k 10 3 1,000 deci d 10 1 0.1 centi c 10 2 0.01 milli

### READ ONLY. Adopting Agency BSC SFM. Adopt Entire Chapter X X X X X X X X X Adopt Entire Chapter as amended (amended sections listed below)

CALIFORNIA MECHANICAL CODE MATRIX ADOPTION TABLE APPENDIX D UNIT CONVERSION TABLES (Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority

### National 5 Physics. Language Wikipedia. Electricity

National 5 Physics Catlin.Fatu@English Language Wikipedia Electricity Throughout the Course, appropriate attention should be given to units, prefixes and scientific notation. tera T 10 12 x 1,000,000,000,000

### Electrical and Electronic Measurements

1 Electrical and Electronic Measurements WEEK 1 Introduction WEEK 2-4 Measurements / Analysis / Errors WEEK 5 Indicating instruments WEEK 6-7 Component measurements WEEK 8 Midterm exam WEEK 9-10 Digital

### ELECTROMAGNETIC OSCILLATIONS AND ALTERNATING CURRENT

Chapter 31: ELECTROMAGNETIC OSCILLATIONS AND ALTERNATING CURRENT 1 A charged capacitor and an inductor are connected in series At time t = 0 the current is zero, but the capacitor is charged If T is the

### Electric Circuits. June 12, 2013

Electric Circuits June 12, 2013 Definitions Coulomb is the SI unit for an electric charge. The symbol is "C". Electric Current ( I ) is the flow of electrons per unit time. It is measured in coulombs per