Electrical Engineering Fundamentals
|
|
- Horatio Houston
- 5 years ago
- Views:
Transcription
1 Electrical Engineering Fundamentals EE-238 Sheet 1 Series Circuits 1- For the circuits shown below, the total resistance is specified. Find the unknown resistance and the current for each circuit k Ω R 60 V R T = 60 k Ω 120V 50 Ω R 1 60 Ω R T = 220 Ω 4.5 k Ω 0.4 k Ω R 1 = R 2 10 Ω 2- find the applied voltage E necessary to develop the current specified in each circuit below. 60 Ω 1.2 KΩ 1.2 Ω 8.2 Ω 4.7Ω = 4 ma E 2.74 KΩ E 2.7Ω = 250 ma 3- for each network, determine the current, the source voltage E, the unknown resistance and the voltage across each element. 5 Ω E P = 79.2 mw + E 12V 2 Ω 3.3 kω 2.2 kω R T =16 Ω R R + 9 V 1
2 4- find the unknown voltage source and resistor for each of the networks shown below. Also indicate the direction of tresulting current. E 5 KΩ P = 100 mw 6 V - 12 V + + R = 5 ma R 16 V 2 kω 8 V _ 20 V E 5- find the unknown quantites in the circuits shown below. + V V V + -- V Ω R 2..2 Ω 4.7 Ω V E 6.8 Ω V 2 + P = 8 W P = 4 W + V V 2 -- P = 21 W - 20 Ω 1 Ω + R 1 R 2 E R V 3 E 1 Ω 1A _ R T =16 Ω 6- Using the voltage divider, find V ab for the circuits shown below. 4 K Ω 1 K Ω a 2.5 Ω a 1.5 Ω 40V 2 K Ω 3 K Ω Va b 0.36V 0.6 Ω V ab b 0.5 Ω b 0.7 Ω 2
3 Electrical Engineering Fundamentals Sheet 2 Parallel Circuits EE Using the information provided find the unkonown resistances in the following circuts. R T = 6 Ω 18 Ω R 18 Ω R T = 4 Ω R 1 9 Ω R 2 =R 1 18 Ω 6 A 12 V R 6 Ω 1 24 V 2- For the network shown: a- Find the current. b- Calculate the power dissipated by 4 Ω resistor. c- Find the current Ω 4Ω 12 Ω 2-8 V 3- For the network shown: a- Find the current. b- Find the voltage V. c- Calculate the source current s. -- V +24 V + S 10 K Ω 4 K Ω +8 V 2 K Ω 4- Using Kirchhoff s current law, determine the unknown current in the network shown below. 60 μa 5 ma 2 μa ma μa ma 8 ma 1 3
4 5- Find the unknown quantities for the circuits shown below. 64 V 3 =100 ma 1 3 1KΩ R 4KΩ P =30 W 1 3 E 30 Ω R 2 R 3 = R 2 2 A 6- Using the current divider rule, find the unknown currents for the networks shown. 1 1 Ω 2 Ω 500 ma Ω Ω 12 Ω Ω 1 = 4 A 7- Calculate the resistor R for the network shown, that will ensure the current 1 = KΩ 60 ma R 2 8- For the network shown, determine: a- The short circuit currents 1 and 2. b- The voltages V 1 and V 2. c- The source current. 2 4 Ω 10 Ω Ω V 1 20 V V Ω 4
5 Electrical Engineering Fundamentals EE-238 Sheet 3 Series &Parallel Kirchhoff s Laws 1- For the network shown: a- Calculate R T. b- Determine and 1. c- Find V Ω R T + 64 V 6 Ω V 3 12.Ω _ 2- For the circuit shown: a- Determine R T. b- Find s, 1 and 2. c- Calculate V a. s Ω 36V 10 Ω 15 Ω V a 2 Ω R T V a 14 Ω 6 Ω 4 20 Ω b 3- For the network shown: a- Determine the currents s, 1, 3 and 4. b- Calculate the voltages V a and V bc. c S 3 10 Ω 20 V 5 Ω 1 5
6 4- Find V o in the circuit shown. 1.5 A 300 Ω 2 KΩ 10 KΩ 200 Ω - V o Ω 1 KΩ 5- Find V o and V g in the circuit shown 16 Ω 2 Ω 6 Ω 15A 20 Ω 12 Ω Ω 30 Ω V o 32 Ω V g For the network shown: a- Determine the current. b- Calculate the open circuit voltage V. 8 Ω 20V + V - 8 V 3 Ω 6 Ω 6
7 Electrical Engineering Fundamentals EE-238 Sheet 4 Node Voltage Methode 1- Write the nodal equations of the networks shown below, then find the node voltages. 2Ω 5A 2Ω 5Ω 3A 4Ω 4Ω 4A 2Ω 2A 20Ω 5Ω 2- Use the node voltage methode to find the voltages V 1 and V 2 in the circuit shown. 8Ω + + 6A V 1 40Ω 80Ω V 2 120Ω 1A 3- Use the node voltage methode to find the voltages V 1 and V 2 in the circuit shown. 4Ω 80Ω V V 1 10Ω V 2 3A 5Ω 7
8 4- Use the node voltage methode to find the voltages a, b and c in the circuit shown. 5Ω 4Ω 10Ω a + b - c 128V 60 Ω 80 Ω 320V Use the node voltage methode to find the voltages 1 in the circuit shown. 4Ω 1 Ω 3 Ω V 2A 6Ω - 6- Find the voltage V x using the node voltage methode. 7 Ω 4 A + 4 Ω 6 A V x _ 5 Ω 3 Ω + - 2V 8
9 Electrical Engineering Fundamentals EE-238 Sheet 5 Mesh Current Method 1- Find the current through each resistor using mesh current method. 3.3 KΩ 5.6 KΩ 2.2 KΩ 30 V 10 V 20 V 1.2 KΩ 9V 8.2 KΩ 9.1 KΩ 6 V 1.1 KΩ 2- Using mesh current method find the voltages V ab for the networks shown. 6 V a 5Ω 2 Ω 3 Ω V ab 20 V 25 V 60 V b a 4 Ω 6 V b 3 A 3 Ω 6 Ω 8 Ω 4 V 9
10 3- Use the mesh current method find the voltage across the 20 Ω resistors in the circuit. 5 Ω 4 Ω V 20 Ω 80 V Ω 80 Ω 4- Use the mesh current method find the total power dissipated in the circuit. 4 A 3 Ω 1.8 Ω V 3 A 15 V Ω 1.2 Ω 5- Use the mesh current method find the current 1 in the circuits. 8 A 6 Ω 8 Ω 4 Ω 1 3 A 1 Ω 20 V 4 Ω 10 Ω 6 Ω 24 V 1 6 A 12 V 10
11 Electrical Engineering Fundamentals EE-238 Sheet 6 Source Transformation & Superposition 1-Using series of source transformation find o. 2.3 KΩ o 2 ma 1 KΩ 2.7 KΩ 0.6 ma 2- Using source transformation find V ab. 10 Ω 4 Ω a 6 A 24 V 12 Ω V ab b 3- Using series of source transformation find o. 1 A 6 Ω o 5 Ω 17 Ω 2 A 6 Ω Ω 34 V - 11
12 4- Using the principle of superposition find o. 12 Ω - V o + 10 V 6 Ω o 6 Ω 5 V 5- Using the principle of superposition find o. 3.3 K Ω o 5 ma 4.7 KΩ 8 V 4.7 KΩ 4 Ω o 6 A 3 Ω 6 Ω 12 Ω 4 Ω 12 V 8 V 6- Using the principle of superposition find o and V o. 4.5 Ω o 60 Ω 2 A 5 Ω 10 V _ + V o 20 Ω 5Ω 10 Ω _ + 12
13 Sheet 7 Magnetic Circuits 1- Find the current necessary to establish a flux Ф = 3x10-4 Wb in the series magnetic circuit shown in figure. L sheet steel = 0.3 m. L cast iron = 0.3 m. Area (throughout) =5x10-4 m 2. N =100 turns. Cast iron Sheet steel 0.3 m 0.3 m N =100 turns. 2- a- Find the number of turns N required to establish a flux Ф = 12x10-4 Wb in the magnetic circuit shown in figure. b- Find the permeability of the material. L m = mean length = 0.2 m. Uniform area (throughout) = m 2. =2A Cast steel =1 A N 2 =30 t N 1 Area = m 2 3- a -Find the m.m.f. N required to establish a flux Ф = lines in the magnetic circuit shown in figure. b- Find the permeability of each material. Cast-steel L cast steel =5.5 inch. L sheet steel = 0.5 inch. Uniform area (throughout) =1 inch 2. N Sheet- steel 4- For the series magnetic circuit with two sources of magnetic pressure, determine the current. Each applied m.m.f establishes a flux in the opposite direction of the other. Ф = 0.8x10-4 Wb. L cast steel =5.5 inch. L cast iron = 2.5 inch. Area (throughout) = 0.25 inch 2. Cast steel N 1 =20 t N 2 =30 t Cast iron 13
14 5- a -Find the current required to establish a flux Ф = 2.4x10-4 Wb in the magnetic circuit shown in figure. b- Compare the mmf drop across the air gap to that across the rest of the magnetic circuit. Discuss your results using the value of μ for each. Area (throughout) = 2 x10-4 m 2. N = 100 Turns. l ab = l cd = 0.05 m. l ac = l bd = 0.02 m. a b m c d 6- The magnetic circuit shown in figure is constructed of sheet steel, and the coil has 900 turns. Calculate the current required to establish a flux Ф = 330 μwb in the air gap. 12 cm 0.75 mm N 9cm 2x 3 c m 2 Cross- section areas 2x2 c m 2 7- Determine the magnetic flux Ф established in the magnetic circuit shown in figure. Area (throughout) =2 x10-4 m 2. l ab = l cd = 0.2 m. l ac = l bd =0.2 m. The air gap in l cd = 8x10-4 m. N =150 turns. µ r = 600. a b =2A 8x10-4 m c d 8- For the series - parallel magnetic circuit constructed of cast steel shown in figure, find the value of current required to establish a flux in the air gap Ф = 1x10-4 Wb. L ab = L bc =L fe= L ed =0.2 m. L af = L be= L= cd =0.1 m. N =200 t a Ф 1 b Ф 2 Ф 3 A=2x10-4 m 2 f e c d m Area =5x10-4 m 2 14
15 1- Convert the following: Sheet 8 Alternating Current Degrees to radians 45 o, 120 o,178 o, and 221 o Radians to degrees π / 8, 3 π, 0.55 π and 0.1 π / 4 2- Find the angular velocity ω of the waveforms with: Period T 2 sec,. 0.3 m sec, 4 μ sec and 1 / 25 sec. Frequency f 50 Hz, 600 Hz, 2 KHz, and MHz. 3- Find the frequency f and the period T of sin waves having the angular velocity ω: 754 rad/sec, 8.4 rad/sec, 6000 rad/sec and 1/16 rad/sec. 4- A sinusoidal waveform: Passes through an angle of 30 o in 5 msec, determine the angular velocity ω. f the frequency is f = 50 Hz, determine the time it will take to pass an angle 45 o. 5- Find amplitude and frequency of the following waveforms: 20 sin 377 t, 5 sin 754 t, 10 sin t,0.001 sin 9421 t and 7.6 sin 43.6 t. 6- Sketch the wave 5 sin 754 t with abscissa: Angle in degrees, angle in radians and time in seconds. 7- Determine the time t for the given α in the following: V =0.5 sin α t ( α = 72 o ) and V = 20 sin α t ( α = 1.2 π ). 8- Given V =30x10 2 sin α, determine the angle α when V= 6 mv. 9- f V = 40 v at α =30 o and t = 1 m sec., write the mathematical expression of the sinusoidal voltage. 10- Sketch the waves 50 sin (ω t+ 0 o ), 5 sin (ω t 60 o ) and 50 cos (ω t). 11- Find the phase relation of between: v(t) = 40 sin (ω t+ 50 o ) and i(t) =5 sin (ω t+ 40 o ) v(t) = 0.2 sin (ω t- 80 o ) and i(t) =0.1 sin (ω t -10 o ) v(t) = 20 cos (ω t- 30 o ) and i(t) =5 sin (ω t+ 60 o ) 12- Write the analytical expression for the waveform given in figure. 25 V f = 60 H z i (t) 2/3 π π/6 ωt A ωt
16 Sheet 9 Average & Effective Value 1- Find the average values of the waveforms shown in figure over one cycle. v (t) i (ma) t (s) t (sec) 2- Find the average value of the waveforms shown in figure over one cycle. V(t) 10V t (sec) -10V 3- Find the effective value of the following sinusoidal waveforms: v(t)=20 sin 754 t v(t)= 7.07 sin377 t i(t) =0.006 sin (400 t+20 o ) i(t) =16x10-3 sin (377 t-10 o ) 4- Write the sinusoidal expressions for voltages and currents having the following effective values at a frequency of 60 c/sec with zero phase shift: volt 70.7 volt 0.06 A 24 μa 5- Find the effective value of the wave form shown in figure over one cycle. v (t) t (sec) Find the effective value of the wave forms shown in figure over one cycle. v (t) t (sec) v (t) t (sec)
17 7- Find the effective and average values of the square waveform of figure over one cycle. v (t) t (sec) V f = 60 H z i (t) 2/3 π π/6 ωt A ωt
18 Sheet 10 Phasors 1- Express the following phasor currents and voltages as sin waves if the frequency is f = 50 c/sec: a) = 40 A 20 o b) V = 120 v 0 o c) = 8 x10 3 A 120 o d) V = 5 v 90 o e) = 1200 A -120 o f) V = 6000 v -180 o 2- For the circuit shown in figure, find the sinusoidal expression for the unknown voltage v a if: e in = 60 sin (377t + 20 o ) v b = 20 sin (377t) 2 e in + + v a + v b 3- For the circuit shown in figure, find the sinusoidal expression for the unknown current i s if: i i 1 = 20x10 6 sin (ωt + 90 o s ) i 1 i s i 2 = 20x10 6 sin (ωt - 60 o ) 4- Find the sinusoidal expression for the unknown voltage e in if: v a = 60 sin (ωt + 30 o ) v b = 30 sin (ωt - 30 o ) v c = 40 sin (ωt o ) e in + + v a + v b + v c 5- For the circuit shown in figure, find the sinusoidal expression for the unknown current i s if: i 1 = 6x10 3 sin (377t o ) i 2 = 8x10 3 sin (377t) i s i 3 = 2 i i 1 i 2 i 3 2
19 Sheet 11 Series Configuration 1- Calculate the total impedance of the circuit shown in figure. Express your answer in Rectangular and polar form, and draw the impedance diagram. R = 6.8 Ω R 1 = 2 Ω Xc = 6 Ω R 1 = 1 KΩ X L1 =3 KΩ Z it X L 6.8 Ω Z it R 2 8 Ω Z it R 2 4 KΩ X L2 = 7 KΩ 2- Find the type and impedance in Ohms of the series circuit elements that must be contained in the closed containers shown in figure for the indicated voltages and currents at the input terminals. Find the simplest series circuits that satisfy the indicated conditions = 60A 70 o = 20 ma 40 o = 0.2 A -60 o E =120 v 0 o? E =80 v 320 o? E =8 Kv 0 o? 3- For the circuit shown in figure: R = 8 Ω X L = 6 Ω + E 100v 20 o a- Find the total impedance Z in polar form. b- Draw the impedance diagram. c- Find the current and the voltages V R and V L in polar form. d- Draw the phasor of voltages V, V and V and the current. e- Verify Kirchhoff's voltage law around the closed loop. f- Find the average power delivered to the circuit. g- Find the power factor of the circuit and indicate whether it is leading or lagging. h- Find the sinusoidal expressions for the voltages and current if f = 60 c/sec. i- Plot the waveforms for the voltages and current on the same set of axes.
20 4- Given the network shown in figure: + V R + V C R C e(t) = 20sinωt 0.47 KΩ 0.1 μf f =1Kc/sec a- Determine Z it b- Find. c- Calculate V R and V L d- Find P and p.f. 5- For the circuit shown in figure: R = 8 Ω X L = 6 Ω X C = 10 Ω e(t) = 70.7 sin377t a- Find the total impedance Z in polar form. b- Draw the impedance diagram. c- Find the value of C in μf and the value of L in Henry. d- Find the current and the voltages V R,V L and V C in polar form. e- Draw the phasor diagram of voltages V R,V L and V C and the current. f- Verify Kirchhoff's voltage law around the closed loop. g- Find the average power delivered to the circuit. h- Find the power factor of the circuit and indicate whether it is leading or lagging. i- Find the sinusoidal expressions for the voltages and current. j- Plot the waveforms for the voltages and current on the same set of axes.
Ac fundamentals and AC CIRCUITS. Q1. Explain and derive an expression for generation of AC quantity.
Ac fundamentals and AC CIRCUITS Q1. Explain and derive an expression for generation of AC quantity. According to Faradays law of electromagnetic induction when a conductor is moving within a magnetic field,
More informationQuestions Bank of Electrical Circuits
Questions Bank of Electrical Circuits 1. If a 100 resistor and a 60 XL are in series with a 115V applied voltage, what is the circuit impedance? 2. A 50 XC and a 60 resistance are in series across a 110V
More informationSample Question Paper
Scheme G Sample Question Paper Course Name : Electrical Engineering Group Course Code : EE/EP Semester : Third Subject Title : Electrical Circuit and Network 17323 Marks : 100 Time: 3 hrs Instructions:
More informationReg. No. : BASIC ELECTRICAL TECHNOLOGY (ELE 101)
Department of Electrical and Electronics Engineering Reg. No. : MNIPL INSTITUTE OF TECHNOLOGY, MNIPL ( Constituent Institute of Manipal University, Manipal) FIRST SEMESTER B.E. DEGREE MKEUP EXMINTION (REVISED
More informationCHAPTER 6: ALTERNATING CURRENT
CHAPTER 6: ALTERNATING CURRENT PSPM II 2005/2006 NO. 12(C) 12. (c) An ac generator with rms voltage 240 V is connected to a RC circuit. The rms current in the circuit is 1.5 A and leads the voltage by
More informationKINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK UNIT I BASIC CIRCUITS ANALYSIS PART A (2-MARKS)
KINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK YEAR / SEM : I / II SUBJECT CODE & NAME : EE 1151 CIRCUIT THEORY UNIT I BASIC CIRCUITS ANALYSIS PART A (2-MARKS)
More informationBakiss Hiyana binti Abu Bakar JKE, POLISAS BHAB
1 Bakiss Hiyana binti Abu Bakar JKE, POLISAS 1. Explain AC circuit concept and their analysis using AC circuit law. 2. Apply the knowledge of AC circuit in solving problem related to AC electrical circuit.
More informationI. Introduction to Simple Circuits of Resistors
2 Problem Set for Dr. Todd Huffman Michaelmas Term I. Introduction to Simple ircuits of esistors 1. For the following circuit calculate the currents through and voltage drops across all resistors. The
More informationSpring 2000 EE361: MIDTERM EXAM 1
NAME: STUDENT NUMBER: Spring 2000 EE361: MIDTERM EXAM 1 This exam is open book and closed notes. Assume f=60 hz and use the constant µ o =4π 10-7 wherever necessary. Be sure to show all work clearly. 1.
More informationAligarh College of Engineering & Technology (College Code: 109) Affiliated to UPTU, Approved by AICTE Electrical Engg.
Aligarh College of Engineering & Technology (College Code: 19) Electrical Engg. (EE-11/21) Unit-I DC Network Theory 1. Distinguish the following terms: (a) Active and passive elements (b) Linearity and
More informationPART B. t (sec) Figure 1
Code No: R16128 R16 SET 1 I B. Tech II Semester Regular Examinations, April/May 217 ELECTRICAL CIRCUIT ANALYSIS I (Electrical and Electronics Engineering) Time: 3 hours Max. Marks: 7 Note: 1. Question
More informationSINUSOIDS February 4, ELEC-281 Network Theory II Wentworth Institute of Technology. Bradford Powers Ryan Ferguson Richard Lupa Benjamin Wolf
SINUSOIDS February 4, 28 ELEC-281 Network Theory II Wentworth Institute of Technology Bradford Powers Ryan Ferguson Richard Lupa Benjamin Wolf Abstract: Sinusoidal waveforms are studied in three circuits:
More informationQUESTION BANK ETE (17331) CM/IF. Chapter1: DC Circuits
QUESTION BANK ETE (17331) CM/IF Chapter1: DC Circuits Q1. State & explain Ohms law. Also explain concept of series & parallel circuit with the help of diagram. 3M Q2. Find the value of resistor in fig.
More informationHours / 100 Marks Seat No.
17323 14115 3 Hours / 100 Seat No. Instructions (1) All Questions are Compulsory. (2) Illustrate your answers with neat sketches wherever necessary. (3) Figures to the right indicate full marks. (4) Assume
More informationWALJAT COLLEGES OF APPLIED SCIENCES In academic partnership with BIRLA INSTITUTE OF TECHNOLOGY Question Bank Course: EC Session:
WLJT OLLEGES OF PPLIED SIENES In academic partnership with IRL INSTITUTE OF TEHNOLOGY Question ank ourse: E Session: 20052006 Semester: II Subject: E2001 asic Electrical Engineering 1. For the resistive
More information15. the power factor of an a.c circuit is.5 what will be the phase difference between voltage and current in this
1 1. In a series LCR circuit the voltage across inductor, a capacitor and a resistor are 30 V, 30 V and 60 V respectively. What is the phase difference between applied voltage and current in the circuit?
More informationCHAPTER 9. Sinusoidal Steady-State Analysis
CHAPTER 9 Sinusoidal Steady-State Analysis 9.1 The Sinusoidal Source A sinusoidal voltage source (independent or dependent) produces a voltage that varies sinusoidally with time. A sinusoidal current source
More informationQuestion Paper Profile
I Scheme Question Paper Profile Program Name : Electrical Engineering Program Group Program Code : EE/EP/EU Semester : Third Course Title : Electrical Circuits Max. Marks : 70 Time: 3 Hrs. Instructions:
More informationFigure Derive the transient response of RLC series circuit with sinusoidal input. [15]
COURTESY IARE Code No: R09220205 R09 SET-1 B.Tech II Year - II Semester Examinations, December-2011 / January-2012 NETWORK THEORY (ELECTRICAL AND ELECTRONICS ENGINEERING) Time: 3 hours Max. Marks: 80 Answer
More informationCircuit Analysis-II. Circuit Analysis-II Lecture # 2 Wednesday 28 th Mar, 18
Circuit Analysis-II Angular Measurement Angular Measurement of a Sine Wave ü As we already know that a sinusoidal voltage can be produced by an ac generator. ü As the windings on the rotor of the ac generator
More informationCHAPTER 14 ALTERNATING VOLTAGES AND CURRENTS
CHAPTER 4 ALTERNATING VOLTAGES AND CURRENTS Exercise 77, Page 28. Determine the periodic time for the following frequencies: (a) 2.5 Hz (b) 00 Hz (c) 40 khz (a) Periodic time, T = = 0.4 s f 2.5 (b) Periodic
More informationEE6201 CIRCUIT THEORY QUESTION BANK PART A
EE6201 CIRCUIT THEORY 1. State ohm s law. 2. State kirchoff s law. QUESTION BANK PART A 3. Which law is applicable for branch current method? 4. What is the matrix formation equation for mesh and nodal
More informationSIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR (AUTONOMOUS) Siddharth Nagar, Narayanavanam Road QUESTION BANK (DESCRIPTIVE) UNIT I INTRODUCTION
SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR (AUTONOMOUS) Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) Subject with Code : Electrical Circuits(16EE201) Year & Sem: I-B.Tech & II-Sem
More informationElectromagnetic Oscillations and Currents. March 23, 2014 Chapter 30 1
Electromagnetic Oscillations and Currents March 23, 2014 Chapter 30 1 Driven LC Circuit! The voltage V can be thought of as the projection of the vertical axis of the phasor V m representing the time-varying
More informationB.Tech II SEM Question Bank. Electronics & Electrical Engg UNIT-1
UNIT-1 1. State & Explain Superposition theorem & Thevinin theorem with example? 2. Calculate the current in the 400Ωm resistor of below figure by Superposition theorem. 3. State & Explain node voltage
More informationCH 1. Large coil. Small coil. red. Function generator GND CH 2. black GND
Experiment 6 Electromagnetic Induction "Concepts without factual content are empty; sense data without concepts are blind... The understanding cannot see. The senses cannot think. By their union only can
More informationAP Physics C. Alternating Current. Chapter Problems. Sources of Alternating EMF
AP Physics C Alternating Current Chapter Problems Sources of Alternating EMF 1. A 10 cm diameter loop of wire is oriented perpendicular to a 2.5 T magnetic field. What is the magnetic flux through the
More informationEE42: Running Checklist of Electronics Terms Dick White
EE42: Running Checklist of Electronics Terms 14.02.05 Dick White Terms are listed roughly in order of their introduction. Most definitions can be found in your text. Terms2 TERM Charge, current, voltage,
More informationPHY 132 Summer 2000 LAB 9: LRC Circuit (Phases) 1
PHY 132 Summer 2000 LAB 9: LRC Circuit (Phases) 1 Introduction In this lab we will measure the phases (voltage vs current) for each component in a series LRC circuit. Theory L C V_in R Fig. 1 Generic series
More informationPaper-1 (Circuit Analysis) UNIT-I
Paper-1 (Circuit Analysis) UNIT-I AC Fundamentals & Kirchhoff s Current and Voltage Laws 1. Explain how a sinusoidal signal can be generated and give the significance of each term in the equation? 2. Define
More informationChapter 6: Alternating Current. An alternating current is an current that reverses its direction at regular intervals.
Chapter 6: Alternating Current An alternating current is an current that reverses its direction at regular intervals. Overview Alternating Current Phasor Diagram Sinusoidal Waveform A.C. Through a Resistor
More informationDownloaded from / 1
PURWANCHAL UNIVERSITY II SEMESTER FINAL EXAMINATION-2008 LEVEL : B. E. (Computer/Electronics & Comm.) SUBJECT: BEG123EL, Electrical Engineering-I Full Marks: 80 TIME: 03:00 hrs Pass marks: 32 Candidates
More informationVALLIAMMAI ENGINEERING COLLEGE
P a g e 2 Question Bank Programme Subject Semester / Branch : BE : EE6201-CIRCUIT THEORY : II/EEE,ECE &EIE UNIT-I PART-A 1. Define Ohm s Law (B.L.T- 1) 2. List and define Kirchoff s Laws for electric circuits.
More informationFind all the remaining sides, angles and area of the following triangles
Trigonometry Angles of Elevation and depression 1) If the angle of elevation of the top of a vertical 30m high aerial is 32, how is it to the aerial? 2) From the top of a vertical cliff 80m high the angles
More informationChapter 6: Alternating Current
hapter 6: Alternating urrent 6. Alternating urrent.o 6.. Define alternating current (A) An alternating current (A) is the electrical current which varies periodically with time in direction and magnitude.
More informationLecture # 4 Network Analysis
CPEN 206 Linear Circuits Lecture # 4 Network Analysis Dr. Godfrey A. Mills Email: gmills@ug.edu.gh Phone: 026-907-3163 February 22, 2016 Course TA David S. Tamakloe 1 What is Network Technique o Network
More informationAlternating current circuits- Series RLC circuits
FISI30 Física Universitaria II Professor J.. ersosimo hapter 8 Alternating current circuits- Series circuits 8- Introduction A loop rotated in a magnetic field produces a sinusoidal voltage and current.
More information, answer the next six questions.
Frequency Response Problems Conceptual Questions 1) T/F Given f(t) = A cos (ωt + θ): The amplitude of the output in sinusoidal steady-state increases as K increases and decreases as ω increases. 2) T/F
More informationPHYSICS WORKSHEET CLASS : XII. Topic: Alternating current
PHYSICS WORKSHEET CLASS : XII Topic: Alternating current 1. What is mean by root mean square value of alternating current? 2. Distinguish between the terms effective value and peak value of an alternating
More informationSolution: Based on the slope of q(t): 20 A for 0 t 1 s dt = 0 for 3 t 4 s. 20 A for 4 t 5 s 0 for t 5 s 20 C. t (s) 20 C. i (A) Fig. P1.
Problem 1.24 The plot in Fig. P1.24 displays the cumulative charge q(t) that has entered a certain device up to time t. Sketch a plot of the corresponding current i(t). q 20 C 0 1 2 3 4 5 t (s) 20 C Figure
More informationELEC 2032 ELECTRONICS and SYSTEMS TUTORIAL 2 PHASOR APPROACH TO AC CIRCUIT THEORY
Tutorial ELECTRONCS and SYSTEMS ELEC 3 ELEC 3 ELECTRONCS and SYSTEMS TUTORAL PHASOR APPROACH TO AC CRCUT THEORY. - Sinusoidal Steady State.. - Complex Numbers, Phasors and mpedance.. - Node and Mesh Analysis
More informationAlternating voltages and currents
Alternating voltages and currents Introduction - Electricity is produced by generators at power stations and then distributed by a vast network of transmission lines (called the National Grid system) to
More informationChapter 33. Alternating Current Circuits
Chapter 33 Alternating Current Circuits Alternating Current Circuits Electrical appliances in the house use alternating current (AC) circuits. If an AC source applies an alternating voltage to a series
More informationTHE SINUSOIDAL WAVEFORM
Chapter 11 THE SINUSOIDAL WAVEFORM The sinusoidal waveform or sine wave is the fundamental type of alternating current (ac) and alternating voltage. It is also referred to as a sinusoidal wave or, simply,
More informationECE 2006 University of Minnesota Duluth Lab 11. AC Circuits
1. Objective AC Circuits In this lab, the student will study sinusoidal voltages and currents in order to understand frequency, period, effective value, instantaneous power and average power. Also, the
More informationAC Power Instructor Notes
Chapter 7: AC Power Instructor Notes Chapter 7 surveys important aspects of electric power. Coverage of Chapter 7 can take place immediately following Chapter 4, or as part of a later course on energy
More informationLab 8 - INTRODUCTION TO AC CURRENTS AND VOLTAGES
08-1 Name Date Partners ab 8 - INTRODUCTION TO AC CURRENTS AND VOTAGES OBJECTIVES To understand the meanings of amplitude, frequency, phase, reactance, and impedance in AC circuits. To observe the behavior
More informationChapter Moving Charges and Magnetism
100 Chapter Moving Charges and Magnetism 1. The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity ω is [2013] 2. [2002] zero RvB vbl/r vbl
More informationUniversity of Pune, Online Examination System, Question Bank Course
University of Pune, Online Examination System, Question Bank Course Id 1 Question Even thoughan ac waveform can take any shape the is the most preferable. A Square wave B Sine wave C Triangular wave D
More informationExercise 9: inductor-resistor-capacitor (LRC) circuits
Exercise 9: inductor-resistor-capacitor (LRC) circuits Purpose: to study the relationship of the phase and resonance on capacitor and inductor reactance in a circuit driven by an AC signal. Introduction
More informationSinusoids and Phasors (Chapter 9 - Lecture #1) Dr. Shahrel A. Suandi Room 2.20, PPKEE
Sinusoids and Phasors (Chapter 9 - Lecture #1) Dr. Shahrel A. Suandi Room 2.20, PPKEE Email:shahrel@eng.usm.my 1 Outline of Chapter 9 Introduction Sinusoids Phasors Phasor Relationships for Circuit Elements
More informationAC Circuits. Nikola Tesla
AC Circuits Nikola Tesla 1856-1943 Mar 26, 2012 Alternating Current Circuits Electrical appliances in the house use alternating current (AC) circuits. If an AC source applies an alternating voltage of
More informationPrelab 4 Millman s and Reciprocity Theorems
Prelab 4 Millman s and Reciprocity Theorems I. For the circuit in figure (4-7a) and figure (4-7b) : a) Calculate : - The voltage across the terminals A- B with the 1kΩ resistor connected. - The current
More informationECE 215 Lecture 8 Date:
ECE 215 Lecture 8 Date: 28.08.2017 Phase Shifter, AC bridge AC Circuits: Steady State Analysis Phase Shifter the circuit current I leads the applied voltage by some phase angle θ, where 0 < θ < 90 ο depending
More informationPOLYTECHNIC UNIVERSITY Electrical Engineering Department. EE SOPHOMORE LABORATORY Experiment 5 RC Circuits Frequency Response
POLYTECHNIC UNIVERSITY Electrical Engineering Department EE SOPHOMORE LORTORY Eperiment 5 RC Circuits Frequency Response Modified for Physics 18, rooklyn College I. Overview of Eperiment In this eperiment
More information1. If the flux associated with a coil varies at the rate of 1 weber/min,the induced emf is
1. f the flux associated with a coil varies at the rate of 1 weber/min,the induced emf is 1 1. 1V 2. V 60 3. 60V 4. Zero 2. Lenz s law is the consequence of the law of conservation of 1. Charge 2. Mass
More informationPhasor. Phasor Diagram of a Sinusoidal Waveform
Phasor A phasor is a vector that has an arrow head at one end which signifies partly the maximum value of the vector quantity ( V or I ) and partly the end of the vector that rotates. Generally, vectors
More informationES250: Electrical Science. HW6: The Operational Amplifier
ES250: Electrical Science HW6: The Operational Amplifier Introduction This chapter introduces the operational amplifier or op amp We will learn how to analyze and design circuits that contain op amps,
More informationELECTRICAL CIRCUITS LABORATORY MANUAL (II SEMESTER)
ELECTRICAL CIRCUITS LABORATORY MANUAL (II SEMESTER) LIST OF EXPERIMENTS. Verification of Ohm s laws and Kirchhoff s laws. 2. Verification of Thevenin s and Norton s Theorem. 3. Verification of Superposition
More informationUniversity of Pittsburgh
University of Pittsburgh Experiment #11 Lab Report Inductance/Transformers Submission Date: 12/04/2017 Instructors: Dr. Minhee Yun John Erickson Yanhao Du Submitted By: Nick Haver & Alex Williams Station
More informationENGINEERING COUNCIL CERTIFICATE LEVEL ENGINEERING SCIENCE C103 TUTORIAL 18 ALTERNATING CURRENT
ENGINEERING OUNIL ERTIFIATE LEVEL ENGINEERING SIENE 03 TUTORIAL 8 ALTERNATING URRENT On completion of this tutorial you should be able to do the following. Explain alternating current. Explain Root Mean
More informationV.S.B ENGINEERING COLLEGE DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING I EEE-II Semester all subjects 2 & 16 marks QB
V.S.B ENGINEERING COLLEGE DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING I EEE-II Semester all subjects 2 & 16 marks QB Sl.No Subject Name Page No. 1 Circuit Theory 2 1 UNIT-I CIRCUIT THEORY TWO
More informationMAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION
Important Instructions to examiners: 1. The answers should be examined by key words and not as word-to-word as given in the model answer scheme. 2. The model answer and the answer written by candidate
More informationExperiment 8 Frequency Response
Experiment 8 Frequency Response W.T. Yeung, R.A. Cortina, and R.T. Howe UC Berkeley EE 105 Spring 2005 1.0 Objective This lab will introduce the student to frequency response of circuits. The student will
More informationChapter 30 Inductance, Electromagnetic. Copyright 2009 Pearson Education, Inc.
Chapter 30 Inductance, Electromagnetic Oscillations, and AC Circuits 30-7 AC Circuits with AC Source Resistors, capacitors, and inductors have different phase relationships between current and voltage
More informationPhysics 132 Quiz # 23
Name (please (please print) print) Physics 132 Quiz # 23 I. I. The The current in in an an ac ac circuit is is represented by by a phasor.the value of of the the current at at some time time t t is is
More information13. Magnetically Coupled Circuits
13. Magnetically Coupled Circuits The change in the current flowing through an inductor induces (creates) a voltage in the conductor itself (self-inductance) and in any nearby conductors (mutual inductance)
More informationALTERNATING CURRENT. Lesson-1. Alternating Current and Voltage
esson- ATENATING UENT Alternating urrent and oltage An alternating current or voltage is that variation of current or voltage respectively whose magnitude and direction vary periodically and continuously
More information3.1.Introduction. Synchronous Machines
3.1.Introduction Synchronous Machines A synchronous machine is an ac rotating machine whose speed under steady state condition is proportional to the frequency of the current in its armature. The magnetic
More informationELECTRICAL MEASUREMENTS
R10 Set No: 1 1. a) Derive the expression for torque equation for a moving iron attraction type instrument and comment up on the nature of scale [8] b) Define the terms current sensitivity, voltage sensitivity
More informationELEN 140 ELECTRICAL CIRCUITS II Winter 2013
ELEN 140 ELECTRICAL CIRCUITS II Winter 2013 Professor: Stephen O Loughlin Prerequisite: ELEN 130 Office: C234B Co-requisite: none Office Ph: (250) 762-5445 ext 4376 Lecture: 3.0 hrs/week Email: soloughlin@okanagan.bc.ca
More informationUniversity of Jordan School of Engineering Electrical Engineering Department. EE 219 Electrical Circuits Lab
University of Jordan School of Engineering Electrical Engineering Department EE 219 Electrical Circuits Lab EXPERIMENT 7 RESONANCE Prepared by: Dr. Mohammed Hawa EXPERIMENT 7 RESONANCE OBJECTIVE This experiment
More informationAlternating Current. Slide 1 / 69. Slide 2 / 69. Slide 3 / 69. Topics to be covered. Sources of Alternating EMF. Sources of alternating EMF
Slide 1 / 69 lternating urrent Sources of alternating EMF Transformers ircuits and Impedance Topics to be covered Slide 2 / 69 LR Series ircuits Resonance in ircuit Oscillations Sources of lternating EMF
More informationAlternating Current. Slide 2 / 69. Slide 1 / 69. Slide 3 / 69. Slide 4 / 69. Slide 6 / 69. Slide 5 / 69. Topics to be covered
Slide 1 / 69 lternating urrent Sources of alternating EMF ircuits and Impedance Slide 2 / 69 Topics to be covered LR Series ircuits Resonance in ircuit Oscillations Slide 3 / 69 Sources of lternating EMF
More information2.0 AC CIRCUITS 2.1 AC VOLTAGE AND CURRENT CALCULATIONS. ECE 4501 Power Systems Laboratory Manual Rev OBJECTIVE
2.0 AC CIRCUITS 2.1 AC VOLTAGE AND CURRENT CALCULATIONS 2.1.1 OBJECTIVE To study sinusoidal voltages and currents in order to understand frequency, period, effective value, instantaneous power and average
More informationDesigning Information Devices and Systems II Fall 2018 Elad Alon and Miki Lustig Homework 4
EECS 16B Designing Information Devices and Systems II Fall 2018 Elad Alon and Miki Lustig Homework 4 This homework is solely for your own practice. However, everything on it is in scope for midterm 1,
More informationSample VA Electrical Technology Assessments
Sample 243-133-VA Electrical Technology Assessments EVALUATION OF ASSESSMENT TOOLS USED TO MEASURE ACHIEVEMENT OF IET COURSE COMPETENCIES Please attach copies of all assessment tools used in this section
More informationChapter 31 Alternating Current
Chapter 31 Alternating Current In this chapter we will learn how resistors, inductors, and capacitors behave in circuits with sinusoidally vary voltages and currents. We will define the relationship between
More informationLab E2: B-field of a Solenoid. In the case that the B-field is uniform and perpendicular to the area, (1) reduces to
E2.1 Lab E2: B-field of a Solenoid In this lab, we will explore the magnetic field created by a solenoid. First, we must review some basic electromagnetic theory. The magnetic flux over some area A is
More informationELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT (Assignment)
ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT (Assignment) 1. In an A.C. circuit A ; the current leads the voltage by 30 0 and in circuit B, the current lags behind the voltage by 30 0. What is the
More informationSERIES A.C. CIRCUITS. Learning Objectives. This chapter discusses series AC circuits, and how they function
C H A P T E 3 Learning Objectives A.C. Through esistance and Inductance Power Factor Active and eactive Components of Circuit Current-I Active, eactive and Apparent Power Q-factor of a Coil Power in an
More informationUNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering
UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering EXPERIMENT 8 NETWORK ANALYSIS OBJECTIVES The purpose of this experiment is to mathematically analyze a circuit
More informationLecture 4 - Three-phase circuits, transformer and transient analysis of RLC circuits. Figure 4.1
Lecture 4 - Three-phase circuits, transformer and transient analysis of RLC circuits Power supply to sizeable power converters are often from three-phase AC source. A balanced three-phase source consists
More informationAn induced emf is the negative of a changing magnetic field. Similarly, a self-induced emf would be found by
This is a study guide for Exam 4. You are expected to understand and be able to answer mathematical questions on the following topics. Chapter 32 Self-Induction and Induction While a battery creates an
More information(i) Determine the admittance parameters of the network of Fig 1 (f) and draw its - equivalent circuit.
I.E.S-(Conv.)-1995 ELECTRONICS AND TELECOMMUNICATION ENGINEERING PAPER - I Some useful data: Electron charge: 1.6 10 19 Coulomb Free space permeability: 4 10 7 H/m Free space permittivity: 8.85 pf/m Velocity
More information86 chapter 2 Transformers
86 chapter 2 Transformers Wb 1.2x10 3 0 1/60 2/60 3/60 4/60 5/60 6/60 t (sec) 1.2x10 3 FIGURE P2.2 2.3 A single-phase transformer has 800 turns on the primary winding and 400 turns on the secondary winding.
More informationAC CIRCUITS - CAPACITORS AND INDUCTORS
EXPRIMENT#8 AC CIRCUITS - CAPACITORS AND INDUCTORS NOTE: Two weeks are allocated for this experiment. Before performing this experiment, review the Proper Oscilloscope Use section of Experiment #7. Objective
More informationWalchand Institute of Technology. Basic Electrical and Electronics Engineering. Transformer
Walchand Institute of Technology Basic Electrical and Electronics Engineering Transformer 1. What is transformer? explain working principle of transformer. Electrical power transformer is a static device
More informationINSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
I INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad-500043 CIVIL ENGINEERING TUTORIAL QUESTION BANK Course Name : BASIC ELECTRICAL AND ELECTRONICS ENGINEERING Course Code : AEE018
More informationAssignment 11. 1) Using the LM741 op-amp IC a circuit is designed as shown, then find the output waveform for an input of 5kHz
Assignment 11 1) Using the LM741 op-amp IC a circuit is designed as shown, then find the output waveform for an input of 5kHz Vo = 1 x R1Cf 0 Vin t dt, voltage output for the op amp integrator 0.1 m 1
More informationChapter 2-1 Transformers
Principles of Electric Machines and Power Electronics Chapter 2-1 Transformers Third Edition P. C. Sen Transformer application 1: power transmission Ideal Transformer Assumptions: 1. Negligible winding
More informationModule 7. Transformer. Version 2 EE IIT, Kharagpur
Module 7 Transformer Lesson 28 Problem solving on Transformers Contents 28 Problem solving on Transformer (Lesson-28) 4 28.1 Introduction. 4 28.2 Problems on 2 winding single phase transformers. 4 28.3
More informationChapter 33. Alternating Current Circuits
Chapter 33 Alternating Current Circuits C HAP T E O UTLI N E 33 1 AC Sources 33 2 esistors in an AC Circuit 33 3 Inductors in an AC Circuit 33 4 Capacitors in an AC Circuit 33 5 The L Series Circuit 33
More informationPHYS 219 Spring semester Lecture 16: ac Voltages, ac currents and Transformers. Ron Reifenberger Birck Nanotechnology Center Purdue University
HYS 9 Spring semester 06 Lecture 6: ac oltages, ac currents and Transformers on eifenberger Birck anotechnology Center urdue University Exam When: Wednesday, May 4, 06 7:00-9:00 M Where: HYS Lecture 6
More informationGateway to success. Website:- Helpline no Important Quantities. kg (kilogram) Nm (newton metre) Electrical Quantities
Gateway to success Subject:-BASIC NETWORK Branch:-EE/EC Website:-www.indiagts.com Helpline no. 09300130301 Important Quantities General Quantities Acceleration, linear Area Energy or work Force Length
More informationRC and RL Circuits. Figure 1: Capacitor charging circuit.
RC and RL Circuits Page 1 RC and RL Circuits RC Circuits In this lab we study a simple circuit with a resistor and a capacitor from two points of view, one in time and the other in frequency. The viewpoint
More informationSF026: PAST YEAR UPS QUESTIONS
CHAPTER 3: ELECTRIC CURRENT AND DIRECT-CURRENT CIRCUITS UPS SEMESTER 2 2011/2012 1. (a) (i) What is meant by electrical resistivity? (ii) Calculate the resistance of an iron wire of uniform diameter 0.8
More information01& Basic&Electronics&and&Electric&Power& Denard&Lynch,&P.&Eng.& "2013& EE204. College&of&Engineering,&University&of&Saskatchewan&
EE204 01& Basic&Electronics&and&Electric&Power& Denard&Lynch,&P.&Eng.& "2013& College&of&Engineering,&University&of&Saskatchewan& Table of Contents 1! Review'of'Direct'Current'and'Voltage'...'1! 1.1! Useful'Circuit'Comparisons:'...'1!
More informationAC Theory, Circuits, Generators & Motors
PDH-Pro.com AC Theory, Circuits, Generators & Motors Course Number: EE-02-306 PDH: 6 Approved for: AK, AL, AR, GA, IA, IL, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR,
More informationRLC Circuits. Centre College. Physics 230 Lab 8
ircuits entre ollege Phsics 230 ab 8 1 Preliminaries Objective To stud the electrical characteristics of an alternating current circuit containing a resistor, inductor, and capacitor. Equipment Oscilloscope,
More information