Direct-Current Circuits
|
|
|
- Bartholomew Bruce
- 7 years ago
- Views:
Transcription
1 Chapter 26 Direct-Current Circuits Study resistors in series and parallel Consider Kirchoff s Rules The design and use of electronic measuring instruments R-C circuits The applications of circuits in household wiring
2 Resistors in Series and Parallel Resistors in Series Figure 26-1 V ab Vax Vxy Vyb IR1 IR2 IR3 ab I( R1 R2 R3 ) IR eq R eq R1 R2 R3 V Resistors in Parallel Figure 26-1 Vab Vab Vab I I1 I2 I3 R1 R2 R I V ab Vab R1 R2 R3 R R R R R eq eq Chapter 26 2
3 Series and parallel combination resistors Consider Problem-Solving Strategy Follow Example 26.1 guided by Figure 26.3 below. Follow Example 26.2.
4 Kirchoff s Rules I junctions The algebraic sum of the currents into any junction is zero.
5 Chapter 26 5
6 Kirchhoff s Current Law Kirchhoff s Laws Figure 26-7 Kirchhoff s Current Law - Example Proof Charge can t build up at the junction. Figure 26-8 Chapter 26 6
7 Kirchoff s Rules II loops The algebraic sum of the potential differences in any loop, including those associated with emfs and those of resistive elements, must equal zero.
8 Kirchhoff s Laws - A Single Loop Circuit Example 26-3 a) Solve for I b) Solve for V ab c) Solve for power output of the emf of each battery Figure Chapter 26 8
9 9 Figure R I R I r I R I R I r I 0 ) ( R I I R I r I 0 ) ( R I R I I r I Loop 1 Loop 2 Loop 1 Loop 2 Kirchhoff s Voltage Law Two Loop Example
10 Apply the junction rule to a point a reduces the number of unknown currents from three to two Chapter 26 10
11 Kirchoff s Rules III examples and strategy Read through Problem-Solving Strategy Figure 26.9 illustrates this strategy. Refer to Example 26.3, illustrated by Figure
12 Chapter 26 12
13 Chapter 26 13
14 Chapter 26 14
15 Kirchoff s Rules IV examples Refer to Example 26.4, illustrated by Figure Consider Example Refer to Example 26.6, illustrated by Figure Review Example 26.7.
16 D Arsonval s galvanometer We ll call it simply meter henceforth. The meter is a coil of wire mounted next to a permanent magnet. Any current passing through the coil will induce magnetism in the coil. The interaction of the new electromagnetism and the permanent magnet will move the meter indicator mounted to the coil.
17 The Ammeter and Voltmeter The ammeter (sometimes prefixed with milli or micro because the currents to be measured are routinely thousandths or millionths of an ampere) may be used to measure current OR voltage. A shunt resistor makes this conversion as shown below in Figure
18 Chapter 26 18
19 Chapter 26 19
20 Ohmmeters and digital multimeters An ohmmeter is designed specifically to measure resistance. Refer to Figure and Figure below to see an ohmmeter wiring diagram and a photograph of a digital multimeter. The multimeter can measure current, voltage, or resistance over a wide range.
21 Chapter 26 21
22 Capacitor Charging Solution qt () V0 I( t) R 0 C dq SubstitutingI dt dq q() t V0 R 0 dt C dq V0 q dt R RC dq dt q V C RC q 0 dq 1 q V C RC q V0C t ln V0C RC t dt t 0 1 RC Chapter q V C e dq It () dt V 0 I() t e R V ( t) I( t) R c 0 t RC V ( t) V 1e c t RC
23 R-C Circuits (Chapter 26, Sec 4) Charging a Capacitor R 0.37 I 0 C 0.63 Q f vab v bc q v bc C v ab ir q v bc C vab i R Figure Figure Time Constant RC (26-14) Chapter 26 23
24 R-C Circuits (Chapter 26, Sec 4) Discharging a Capacitor Q 0 RC 0 vab v bc vab v bc q v bc C v ab ir q v bc C vab i R Time Constant RC (26-14) Figure Figure Chapter 26 24
25 Power Distribution Systems 240-V line black, red Neutral Black White 120 v One phase of the 240-V line We buy energy from the Power Company, not power kw x time = watt-seconds = Joules 1 kwh = (1000W) (3600 s ) = 3.6 x 10 6 W-s = 3.6 x 10 6 J 25
26 Fuses, circuit breakers, and GFI A fuse will melt and a breaker will open the circuit if maximum current is reached. See Figure GFI stops further current flow when a sudden drop in resistance indicates that someone has offered a new path to ground. I don t know if it will save this worker we see in Figure who didn t use a grounded drill.
27 The wiring diagram for a typical kitchen Consider Figure below. Follow Example
28 Average Retail Price of Electricity cents per kilowatt-hour Census Division and State Residential Commercial 1 Industrial 1 Nov-07 Nov-06 Nov-07 Nov-06 Nov-07 Nov-06 New England Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont U.S. Total
29 Q26.1 Which of the two arrangements shown has the smaller equivalent resistance between points a and b? A. the series arrangement B. the parallel arrangement C. The equivalent resistance is the same for both arrangements. D. The answer depends on the values of the individual resistances R 1, R 2, and R 3.
30 A26.1 Which of the two arrangements shown has the smaller equivalent resistance between points a and b? A. the series arrangement B. the parallel arrangement C. The equivalent resistance is the same for both arrangements. D. The answer depends on the values of the individual resistances R 1, R 2, and R 3.
31 Q26.2 Three identical resistors, each of resistance R, are connected as shown. What is the equivalent resistance of this arrangement of three resistors? A. 3R B. 2R C. 3R/2 D. 2R/3 E. R/3
32 A26.2 Three identical resistors, each of resistance R, are connected as shown. What is the equivalent resistance of this arrangement of three resistors? A. 3R B. 2R C. 3R/2 D. 2R/3 E. R/3
33 Q26.3 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 120 V 60 W The voltage between points a and b is 120 V. Through which bulb is there the greatest voltage drop? a 120 V 120 W b A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 120 V 240 W D. All three light bulbs have the same voltage drop.
34 A26.3 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 120 V 60 W The voltage between points a and b is 120 V. Through which bulb is there the greatest voltage drop? a 120 V 120 W b A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 120 V 240 W D. All three light bulbs have the same voltage drop.
35 Q26.4 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 120 V 60 W The voltage between points a and b is 120 V. Which bulb glows the brightest? a 120 V 120 W b A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 120 V 240 W D. All three light bulbs glow with equal brightness.
36 A26.4 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in parallel as shown. 120 V 60 W The voltage between points a and b is 120 V. Which bulb glows the brightest? a 120 V 120 W b A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb 120 V 240 W D. All three light bulbs glow with equal brightness.
37 Q26.5 a A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are 120 V connected in series as shown. 60 W The voltage between points a and b is 120 V. Through which bulb is there the greatest voltage drop? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop. 120 V 120 W 120 V 240 W b
38 A26.5 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is 120 V. Through which bulb is there the greatest voltage drop? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs have the same voltage drop. a 120 V 60 W 120 V 120 W 120 V 240 W b
39 Q26.6 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is 120 V. Which bulb glows the brightest? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs glow with equal brightness. a 120 V 60 W 120 V 120 W 120 V 240 W b
40 A26.6 A 120-V, 60-W light bulb, a 120-V, 120-W light bulb, and a 120-V, 240-W light bulb are connected in series as shown. The voltage between points a and b is 120 V. Which bulb glows the brightest? A. the 120-V, 60-W light bulb B. the 120-V, 120-W light bulb C. the 120-V, 240-W light bulb D. All three light bulbs glow with equal brightness. a 120 V 60 W 120 V 120 W 120 V 240 W b
41 Q26.7 Three identical light bulbs are connected to a source of emf as shown. Which bulb is brightest? A. light bulb A B. light bulb B C. light bulb C D. both light bulbs B and C (Both are equally bright and are brighter than light bulb A.) E. All bulbs are equally bright.
42 A26.7 Three identical light bulbs are connected to a source of emf as shown. Which bulb is brightest? A. light bulb A B. light bulb B C. light bulb C D. both light bulbs B and C (Both are equally bright and are brighter than light bulb A.) E. All bulbs are equally bright.
43 Q26.8 You wish to study a resistor in a circuit. To simultaneously measure the current in the resistor and the voltage across the resistor, you would place A. an ammeter in series and an voltmeter in series. B. an ammeter in series and an voltmeter in parallel. C. an ammeter in parallel and an voltmeter in series. D. an ammeter in parallel and an voltmeter in parallel.
44 A26.8 You wish to study a resistor in a circuit. To simultaneously measure the current in the resistor and the voltage across the resistor, you would place A. an ammeter in series and an voltmeter in series. B. an ammeter in series and an voltmeter in parallel. C. an ammeter in parallel and an voltmeter in series. D. an ammeter in parallel and an voltmeter in parallel.
45 Q26.9 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the maximum charge stored on the capacitor? A. the emf of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both and C E. all three of, C, and R
46 A26.9 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the maximum charge stored on the capacitor? A. the emf of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both and C E. all three of, C, and R
47 Q26.10 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the rate at which the capacitor charges? A. the emf of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both C and R E. all three of, C, and R
48 A26.10 A battery, a capacitor, and a resistor are connected in series. Which of the following affect(s) the rate at which the capacitor charges? A. the emf of the battery B. the capacitance C of the capacitor C. the resistance R of the resistor D. both C and R E. all three of, C, and R
Circuits. The light bulbs in the circuits below are identical. Which configuration produces more light? (a) circuit I (b) circuit II (c) both the same
Circuits The light bulbs in the circuits below are identical. Which configuration produces more light? (a) circuit I (b) circuit II (c) both the same Circuit II has ½ current of each branch of circuit
Chapter 7 Direct-Current Circuits
Chapter 7 Direct-Current Circuits 7. Introduction...7-7. Electromotive Force...7-3 7.3 Resistors in Series and in Parallel...7-5 7.4 Kirchhoff s Circuit Rules...7-7 7.5 Voltage-Current Measurements...7-9
= (0.400 A) (4.80 V) = 1.92 W = (0.400 A) (7.20 V) = 2.88 W
Physics 2220 Module 06 Homework 0. What are the magnitude and direction of the current in the 8 Ω resister in the figure? Assume the current is moving clockwise. Then use Kirchhoff's second rule: 3.00
People s Physics Book
The Big Ideas: The name electric current is given to the phenomenon that occurs when an electric field moves down a wire at close to the speed of light. Voltage is the electrical energy density (energy
Chapter 7. DC Circuits
Chapter 7 DC Circuits 7.1 Introduction... 7-3 Example 7.1.1: Junctions, branches and loops... 7-4 7.2 Electromotive Force... 7-5 7.3 Electrical Energy and Power... 7-9 7.4 Resistors in Series and in Parallel...
AP Physics Electricity and Magnetism #4 Electrical Circuits, Kirchoff s Rules
Name Period AP Physics Electricity and Magnetism #4 Electrical Circuits, Kirchoff s Rules Dr. Campbell 1. Four 240 Ω light bulbs are connected in series. What is the total resistance of the circuit? What
Method 1: 30x50 30 50 18.75 15 18.75 0.8. 80 Method 2: 15
The University of New South Wales School of Electrical Engineering and Telecommunications ELEC Electrical and Telecommunications Engineering Tutorial Solutions Q. In the figure below a voltage source and
Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010. Dr.Prapun Suksompong 1 June 16, 2010
Sirindhorn International Institute of Technology Thammasat University School of Information, Computer and Communication Technology Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010 Dr.Prapun
Experiment #5, Series and Parallel Circuits, Kirchhoff s Laws
Physics 182 Summer 2013 Experiment #5 1 Experiment #5, Series and Parallel Circuits, Kirchhoff s Laws 1 Purpose Our purpose is to explore and validate Kirchhoff s laws as a way to better understanding
W03 Analysis of DC Circuits. Yrd. Doç. Dr. Aytaç Gören
W03 Analysis of DC Circuits Yrd. Doç. Dr. Aytaç Gören ELK 2018 - Contents W01 Basic Concepts in Electronics W02 AC to DC Conversion W03 Analysis of DC Circuits (self and condenser) W04 Transistors and
CHAPTER 28 ELECTRIC CIRCUITS
CHAPTER 8 ELECTRIC CIRCUITS 1. Sketch a circuit diagram for a circuit that includes a resistor R 1 connected to the positive terminal of a battery, a pair of parallel resistors R and R connected to the
PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits
PHYSCS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits This experiment is designed to investigate the relationship between current and potential in simple series
Chapter 13: Electric Circuits
Chapter 13: Electric Circuits 1. A household circuit rated at 120 Volts is protected by a fuse rated at 15 amps. What is the maximum number of 100 watt light bulbs which can be lit simultaneously in parallel
Student Exploration: Circuits
Name: Date: Student Exploration: Circuits Vocabulary: ammeter, circuit, current, ohmmeter, Ohm s law, parallel circuit, resistance, resistor, series circuit, voltage Prior Knowledge Questions (Do these
Electrical Fundamentals Module 3: Parallel Circuits
Electrical Fundamentals Module 3: Parallel Circuits PREPARED BY IAT Curriculum Unit August 2008 Institute of Applied Technology, 2008 ATE310- Electrical Fundamentals 2 Module 3 Parallel Circuits Module
Series and Parallel Circuits
Series and Parallel Circuits Direct-Current Series Circuits A series circuit is a circuit in which the components are connected in a line, one after the other, like railroad cars on a single track. There
7. What is the current in a circuit if 15 coulombs of electric charge move past a given point in 3 seconds? (1) 5 A (3) 18 A (2) 12 A (4) 45 A
1. Compared to the number of free electrons in a conductor, the number of free electrons in an insulator of the same volume is less the same greater 2. Most metals are good electrical conductors because
Exercises on Voltage, Capacitance and Circuits. A d = (8.85 10 12 ) π(0.05)2 = 6.95 10 11 F
Exercises on Voltage, Capacitance and Circuits Exercise 1.1 Instead of buying a capacitor, you decide to make one. Your capacitor consists of two circular metal plates, each with a radius of 5 cm. The
3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?
1.- What is electricity? 2.- Write down the name of the atom s particles. 3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?
Parallel and Series Resistors, Kirchoff s Law
Experiment 2 31 Kuwait University Physics 107 Physics Department Parallel and Series Resistors, Kirchoff s Law Introduction In this experiment the relations among voltages, currents and resistances for
Lab 3 - DC Circuits and Ohm s Law
Lab 3 DC Circuits and Ohm s Law L3-1 Name Date Partners Lab 3 - DC Circuits and Ohm s Law OBJECTIES To learn to apply the concept of potential difference (voltage) to explain the action of a battery in
First Year (Electrical & Electronics Engineering)
Z PRACTICAL WORK BOOK For The Course EE-113 Basic Electrical Engineering For First Year (Electrical & Electronics Engineering) Name of Student: Class: Batch : Discipline: Class Roll No.: Examination Seat
DC Circuits (Combination of resistances)
Name: Partner: Partner: Partner: DC Circuits (Combination of resistances) EQUIPMENT NEEDED: Circuits Experiment Board One Dcell Battery Wire leads Multimeter 100, 330, 1k resistors Purpose The purpose
Series and Parallel Circuits
Series and Parallel Circuits Components in a circuit can be connected in series or parallel. A series arrangement of components is where they are inline with each other, i.e. connected end-to-end. A parallel
Solutions to Bulb questions
Solutions to Bulb questions Note: We did some basic circuits with bulbs in fact three main ones I can think of I have summarized our results below. For the final exam, you must have an understanding of
Temperature coefficient of resistivity
Temperature coefficient of resistivity ρ slope = α ρ = ρ o [ 1+ α(t To )] R = R o [1+ α(t T o )] T T 0 = reference temperature α = temperature coefficient of resistivity, units of (ºC) -1 For Ag, Cu, Au,
Eðlisfræði 2, vor 2007
[ Assignment View ] [ Print ] Eðlisfræði 2, vor 2007 30. Inductance Assignment is due at 2:00am on Wednesday, March 14, 2007 Credit for problems submitted late will decrease to 0% after the deadline has
Physics, Chapter 27: Direct-Current Circuits
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Robert Katz Publications Research Papers in Physics and Astronomy 1-1-1958 Physics, Chapter 27: Direct-Current Circuits
STUDY GUIDE: ELECTRICITY AND MAGNETISM
319 S. Naperville Road Wheaton, IL 60187 www.questionsgalore.net Phone: (630) 580-5735 E-Mail: info@questionsgalore.net Fax: (630) 580-5765 STUDY GUIDE: ELECTRICITY AND MAGNETISM An atom is made of three
Problem Solving 8: RC and LR Circuits
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Problem Solving 8: RC and LR Circuits Section Table and Group (e.g. L04 3C ) Names Hand in one copy per group at the end of the Friday Problem
Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.
ch 7 and 16 review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. The heat released by a burning candle
1. The diagram below represents magnetic lines of force within a region of space.
1. The diagram below represents magnetic lines of force within a region of space. 4. In which diagram below is the magnetic flux density at point P greatest? (1) (3) (2) (4) The magnetic field is strongest
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If the voltage at a point in space is zero, then the electric field must be A) zero. B) positive.
Slide 1 / 26. Inductance. 2011 by Bryan Pflueger
Slide 1 / 26 Inductance 2011 by Bryan Pflueger Slide 2 / 26 Mutual Inductance If two coils of wire are placed near each other and have a current passing through them, they will each induce an emf on one
Physics 2102 Lecture 19. Physics 2102
Physics 2102 Jonathan Dowling Physics 2102 Lecture 19 Ch 30: Inductors and RL Circuits Nikolai Tesla What are we going to learn? A road map Electric charge Electric force on other electric charges Electric
Series and Parallel Resistive Circuits Physics Lab VIII
Series and Parallel Resistive Circuits Physics Lab VIII Objective In the set of experiments, the theoretical expressions used to calculate the total resistance in a combination of resistors will be tested
45. The peak value of an alternating current in a 1500-W device is 5.4 A. What is the rms voltage across?
PHYS Practice Problems hapters 8- hapter 8. 45. The peak value of an alternating current in a 5-W device is 5.4 A. What is the rms voltage across? The power and current can be used to find the peak voltage,
BSNL TTA Question Paper-Instruments and Measurement Specialization 2007
BSNL TTA Question Paper-Instruments and Measurement Specialization 2007 (1) Instrument is a device for determining (a) the magnitude of a quantity (b) the physics of a variable (c) either of the above
2 A bank account for electricity II: flows and taxes
PHYS 189 Lecture problems outline Feb 3, 2014 Resistors and Circuits Having introduced capacitors, we now expand our focus to another very important component of a circuit resistors. This entails more
Chapter 30 Inductance
Chapter 30 Inductance - Mutual Inductance - Self-Inductance and Inductors - Magnetic-Field Energy - The R- Circuit - The -C Circuit - The -R-C Series Circuit . Mutual Inductance - A changing current in
Wires & Connections Component Circuit Symbol Function of Component. Power Supplies Component Circuit Symbol Function of Component
Lista Dei Simboli Dei Circuiti Per i Componenti Elettronici Wires & Connections Wire Wires joined Wires not joined To pass current very easily from one part of a circuit to another. A 'blob' should be
Resistors in Series and Parallel Circuits
69 Resistors in Series and Parallel Circuits E&M: Series and parallel circuits Equipment List DataStudio file: Not Required Qty s Part Numbers 1 C/DC Electronics Lab EM-8656 2 D cell 1.5 volt Introduction
Tutorial 12 Solutions
PHYS000 Tutorial 2 solutions Tutorial 2 Solutions. Two resistors, of 00 Ω and 200 Ω, are connected in series to a 6.0 V DC power supply. (a) Draw a circuit diagram. 6 V 00 Ω 200 Ω (b) What is the total
Series and Parallel Circuits
Direct Current (DC) Direct current (DC) is the unidirectional flow of electric charge. The term DC is used to refer to power systems that use refer to the constant (not changing with time), mean (average)
Current Electricity Lab Series/Parallel Circuits. Safety and Equipment Precautions!
Current Electricity Lab Series/Parallel Circuits Name Safety and Equipment Precautions! Plug in your power supply and use ONLY the D.C. terminals of the power source, NOT the A. C. terminals. DO NOT touch
Fig. 1 Analogue Multimeter Fig.2 Digital Multimeter
ELECTRICAL INSTRUMENT AND MEASUREMENT Electrical measuring instruments are devices used to measure electrical quantities such as electric current, voltage, resistance, electrical power and energy. MULTIMETERS
Series-Parallel Circuits. Objectives
Series-Parallel Circuits Objectives Identify series-parallel configuration Analyze series-parallel circuits Apply KVL and KCL to the series-parallel circuits Analyze loaded voltage dividers Determine the
Electric Current and Cell Membranes
Electric Current and Cell Membranes 16 Thus far in our study of electricity, we have essentially confined our attention to electrostatics, or the study of stationary charges. Here and in the next three
Kirchhoff s Laws Physics Lab IX
Kirchhoff s Laws Physics Lab IX Objective In the set of experiments, the theoretical relationships between the voltages and the currents in circuits containing several batteries and resistors in a network,
Light Bulbs in Parallel Circuits
Light Bulbs in Parallel Circuits In the last activity, we analyzed several different series circuits. In a series circuit, there is only one complete pathway for the charge to travel. Here are the basic
CURRENT ELECTRICITY - I
CURRNT LCTRCTY - 1. lectric Current 2. Conventional Current 3. Drift elocity of electrons and current 4. Current Density 5. Ohm s Law 6. Resistance, Resistivity, Conductance & Conductivity 7. Temperature
AP1 Electricity. 1. A student wearing shoes stands on a tile floor. The students shoes do not fall into the tile floor due to
1. A student wearing shoes stands on a tile floor. The students shoes do not fall into the tile floor due to (A) a force of repulsion between the shoes and the floor due to macroscopic gravitational forces.
Direct-Current Circuits
8 Direct-Current Circuits Clicker Questions Question N.0 Description: Understanding circuits with parallel resistances. Question A battery is used to light a bulb as shown. A second bulb is connected by
Resistors in Series and Parallel
Resistors in Series and Parallel Bởi: OpenStaxCollege Most circuits have more than one component, called a resistor that limits the flow of charge in the circuit. A measure of this limit on charge flow
STUDY MATERIAL FOR CLASS 10+2 - Physics- CURRENT ELECTRICITY. The flow of electric charges in a particular direction constitutes electric current.
Chapter : 3 Current Electricity Current Electricity The branch of Physics which deals with the study of electric charges in motion is called current electricity. Electric current The flow of electric charges
Electric Potential Difference
Name: Electric Potential Difference Read from Lesson 1 of the Current Electricity chapter at The Physics Classroom: http://www.physicsclassroom.com/class/circuits/u9l1a.html http://www.physicsclassroom.com/class/circuits/u9l1b.html
Current, Resistance and Electromotive Force. Young and Freedman Chapter 25
Current, Resistance and Electromotive Force Young and Freedman Chapter 25 Electric Current: Analogy, water flowing in a pipe H 2 0 gallons/minute Flow Rate is the NET amount of water passing through a
Experiment 8 Series-Parallel Circuits
Experiment 8 Series-Parallel Circuits EL 111 - DC Fundamentals By: Walter Banzhaf, E.K. Smith, and Winfield Young University of Hartford Ward College of Technology Objectives: 1. For the student to measure
Basic Principles of. Electricity. Basic Principles of Electricity. by Prof. Dr. Osman SEVAİOĞLU Electrical and Electronics Engineering Department
Basic Principles of Electricity METU by Prof. Dr. Osman SEVAİOĞLU Electrical and Electronics Engineering Department EE 209 Fundamentals of Electrical and Electronics Engineering, Prof. Dr. O. SEVAİOĞLU,
Figure 1. Experiment 3 The students construct the circuit shown in Figure 2.
Series and Parallel Circuits When two or more devices are connected to a battery in a circuit, there are a couple of methods by which they can be connected. One method is called a series connection and
Resistance, Ohm s Law, and the Temperature of a Light Bulb Filament
Resistance, Ohm s Law, and the Temperature of a Light Bulb Filament Name Partner Date Introduction Carbon resistors are the kind typically used in wiring circuits. They are made from a small cylinder of
Chapter 19. Electric Circuits
Chapter 9 Electric Circuits Series Wiring There are many circuits in which more than one device is connected to a voltage source. Series wiring means that the devices are connected in such a way that there
ANALOG AND DIGITAL METERS ANALOG VS. DIGITAL METERS VOLTMETERS ANALOG AND DIGITAL
ANALOG VS. DIGITAL METERS Ultimately, your diagnosis of vehicle electrical system problems will come down to using a voltmeter, ammeter, or ohmmeter to pinpoint the exact location of the problem. There
Homework #11 203-1-1721 Physics 2 for Students of Mechanical Engineering
Homework #11 203-1-1721 Physics 2 for Students of Mechanical Engineering 2. A circular coil has a 10.3 cm radius and consists of 34 closely wound turns of wire. An externally produced magnetic field of
The Time Constant of an RC Circuit
The Time Constant of an RC Circuit 1 Objectives 1. To determine the time constant of an RC Circuit, and 2. To determine the capacitance of an unknown capacitor. 2 Introduction What the heck is a capacitor?
Chapter 5. Parallel Circuits ISU EE. C.Y. Lee
Chapter 5 Parallel Circuits Objectives Identify a parallel circuit Determine the voltage across each parallel branch Apply Kirchhoff s current law Determine total parallel resistance Apply Ohm s law in
Essential Electrical Concepts
Essential Electrical Concepts Introduction Modern vehicles incorporate many electrical and electronic components and systems: Audio Lights Navigation Engine control Transmission control Braking and traction
Basic Laws Circuit Theorems Methods of Network Analysis Non-Linear Devices and Simulation Models
EE Modul 1: Electric Circuits Theory Basic Laws Circuit Theorems Methods of Network Analysis Non-Linear Devices and Simulation Models EE Modul 1: Electric Circuits Theory Current, Voltage, Impedance Ohm
Last time : energy storage elements capacitor.
Last time : energy storage elements capacitor. Charge on plates Energy stored in the form of electric field Passive sign convention Vlt Voltage drop across real capacitor can not change abruptly because
Electrical Circuit Theory
Electrical Circuit Theory Learning Objectives: 1. Review the basic electrical concepts of voltage, amperage, and resistance. 2. Review the components of a basic automotive electrical circuit. 3. Introduce
Experiment 4 ~ Resistors in Series & Parallel
Experiment 4 ~ Resistors in Series & Parallel Objective: In this experiment you will set up three circuits: one with resistors in series, one with resistors in parallel, and one with some of each. You
THE BREADBOARD; DC POWER SUPPLY; RESISTANCE OF METERS; NODE VOLTAGES AND EQUIVALENT RESISTANCE; THÉVENIN EQUIVALENT CIRCUIT
THE BREADBOARD; DC POWER SUPPLY; RESISTANCE OF METERS; NODE VOLTAGES AND EQUIVALENT RESISTANCE; THÉVENIN EQUIVALENT CIRCUIT YOUR NAME LAB MEETING TIME Reference: C.W. Alexander and M.N.O Sadiku, Fundamentals
CURRENT ELECTRICITY INTRODUCTION TO RESISTANCE, CAPACITANCE AND INDUCTANCE
CURRENT ELECTRICITY INTRODUCTION TO RESI STANCE, CAPACITANCE AND INDUCTANCE P R E A M B L E This problem is adapted from an on-line knowledge enhancement module for a PGCE programme. It is used to cover
The Charging System. Section 5. Charging System. Charging System. The charging system has two essential functions:
The Charging System Charging System The charging system has two essential functions: Generate electrical power to run the vehicle s electrical systems Generate current to recharge the vehicle s battery
Experiment NO.3 Series and parallel connection
Experiment NO.3 Series and parallel connection Object To study the properties of series and parallel connection. Apparatus 1. DC circuit training system 2. Set of wires. 3. DC Power supply 4. Digital A.V.O.
Current and Voltage Measurements. Current measurement
Current and oltage easurements Current measurement ccording to current continuity (i.e. charge conservation) law, the current can be measured in any portion of a single loop circuit. B Circuit Element
Chapter 12 Driven RLC Circuits
hapter Driven ircuits. A Sources... -. A ircuits with a Source and One ircuit Element... -3.. Purely esistive oad... -3.. Purely Inductive oad... -6..3 Purely apacitive oad... -8.3 The Series ircuit...
CLASS TEST GRADE 11. PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism
CLASS TEST GRADE 11 PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism MARKS: 45 TIME: 1 hour INSTRUCTIONS AND INFORMATION 1. Answer ALL the questions. 2. You may use non-programmable calculators.
Power measurement in balanced 3 phase circuits and power factor improvement. 1 Power in Single Phase Circuits. Experiment no 1
Experiment no 1 Power measurement in balanced 3 phase circuits and power factor improvement 1 Power in Single Phase Circuits Let v = m cos(ωt) = cos(ωt) is the voltage applied to a R-L circuit and i =
Three phase circuits
Three phase circuits THREE PHASE CIRCUITS THREE-PHASE ADVANTAGES 1. The horsepower rating of three-phase motors and the kva rating of three-phase transformers are 150% greater than single-phase motors
( )( 10!12 ( 0.01) 2 2 = 624 ( ) Exam 1 Solutions. Phy 2049 Fall 2011
Phy 49 Fall 11 Solutions 1. Three charges form an equilateral triangle of side length d = 1 cm. The top charge is q = - 4 μc, while the bottom two are q1 = q = +1 μc. What is the magnitude of the net force
Lab 2: Resistance, Current, and Voltage
2 Lab 2: Resistance, Current, and Voltage I. Before you come to la.. A. Read the following chapters from the text (Giancoli): 1. Chapter 25, sections 1, 2, 3, 5 2. Chapter 26, sections 1, 2, 3 B. Read
What is a multimeter?
What is a multimeter? A multimeter is a devise used to measure voltage, resistance and current in electronics & electrical equipment It is also used to test continuity between to 2 points to verify if
Physics 6C, Summer 2006 Homework 2 Solutions
Physics 6C, Summer 006 Homework Solutions All problems are from the nd edition of Walker. Numerical values are different for each student. Chapter 3 Problems. Figure 3-30 below shows a circuit containing
Review Questions PHYS 2426 Exam 2
Review Questions PHYS 2426 Exam 2 1. If 4.7 x 10 16 electrons pass a particular point in a wire every second, what is the current in the wire? A) 4.7 ma B) 7.5 A C) 2.9 A D) 7.5 ma E) 0.29 A Ans: D 2.
Equipment: Power Supply, DAI, Variable resistance (8311), Variable inductance (8321)
Lab 4: 3-phase circuits. Objective: to study voltage-current relationships in 3-phase circuits; to learn to make delta and Y connections; to calculate and measure real, apparent, and reactive powers. Equipment:
Σ I in = Σ I out E = IR 1 + IR 2 FXA 2008 KIRCHHOFF S LAWS 1. Candidates should be able to : LAW 1 (K1)
UNT G482 Module 3 2.3.1 Series & Parallel Circuits Candidates should be able to : KRCHHOFF S LAWS 1 LAW 1 (K1) State Kirchhoff s second law and appreciate that it is a consequence of conservation of energy.
Physics 133: tutorial week 4 Ohm s law, electrical power, emf and internal resistance.
Physics 133: tutorial week 4 Ohm s law, electrical power, emf and internal resistance. 41. The heating element of a clothes drier has a resistance of 11Ïand is connected across a 240V electrical outlet.
Which Bulb Burns Brighter? One is a 60-watt bulb and the other a 100-watt bulb, and they are connected in an electric circuit.
Which Bulb Burns Brighter? One is a 60-watt bulb and the other a 100-watt bulb, and they are connected in an electric circuit. Look at the text on page 541 for the answer. CHPTE 23 Series and Parallel
Lecture Notes ELE A6
ecture Notes EE A6 Ramadan El-Shatshat Three Phase circuits 9/12/2006 EE A6 Three-phase Circuits 1 Three-phase Circuits 9/12/2006 EE A6 Three-phase Circuits 2 Advantages of Three-phase Circuits Smooth
Objectives. Capacitors 262 CHAPTER 5 ENERGY
Objectives Describe a capacitor. Explain how a capacitor stores energy. Define capacitance. Calculate the electrical energy stored in a capacitor. Describe an inductor. Explain how an inductor stores energy.
Table of Contents 1. Introduction 2. Electrical Fundamentals Electron Theory Matter 4 MOLECULE
Table of Contents 1. Introduction 3 2. Electrical Fundamentals 4 Electron Theory 4 Matter 4 MOLECULE 5 The atom 6 Atom construction 7 Electrical charges 11 Balanced atoms 12 Ions 13 Electron orbits 15
Alternating-Current Circuits
hapter 1 Alternating-urrent ircuits 1.1 A Sources... 1-1. Simple A circuits... 1-3 1..1 Purely esistive load... 1-3 1.. Purely Inductive oad... 1-5 1..3 Purely apacitive oad... 1-7 1.3 The Series ircuit...
Lab E1: Introduction to Circuits
E1.1 Lab E1: Introduction to Circuits The purpose of the this lab is to introduce you to some basic instrumentation used in electrical circuits. You will learn to use a DC power supply, a digital multimeter
COMPOUND CIRCUITS. Voltage (volts) Across Bulb B. Across the Battery. Across Bulb A. Current (amperes) Between A & B. Between Battery & B
OMPOUN IUITS LOGGING ON Go to www.explorelearning.com and log in using your Username and Password. Select rowse Gizmos icon at the upper left. Select Grades 9 2 Physics Select Electricity and Magnetism
Chapter 1. Fundamental Electrical Concepts
Chapter 1 Fundamental Electrical Concepts Charge, current, voltage, power circuits, nodes, branches Branch and node voltages, Kirchhoff Laws Basic circuit elements, combinations 01 fundamental 1 1.3 Electrical
DIRECT CURRENT GENERATORS
DIRECT CURRENT GENERATORS Revision 12:50 14 Nov 05 INTRODUCTION A generator is a machine that converts mechanical energy into electrical energy by using the principle of magnetic induction. This principle
Battery Chargers. Revised 8/00 Form Number 56041170 FORM NO. 56041170 / BATTERY CHARGER SERVICE MANUAL / PARTS LIST - 45
Battery Chargers SERVICE MANUAL / PARTS LIST AUTOMATIC Advance MODELS 0980, 098, 797, 8809, 90, 880, 880, 099, 08,, 09788, 098, 7, 097, 70, 790, 889 Lester MODELS 007,, 8, 8, 89, 80, 9, 00, 00, 008 MANUAL
Kirchhoff's Current Law (KCL)
Kirchhoff's Current Law (KCL) I. Charge (current flow) conservation law (the Kirchhoff s Current law) Pipe Pipe Pipe 3 Total volume of water per second flowing through pipe = total volume of water per