General Physics (PHYC 252) Exam 4


 Barry Mosley
 4 years ago
 Views:
Transcription
1 General Physics (PHYC 5) Exam 4 Multiple Choice (6 points). Circle the one best answer for each question. For Questions 13, consider a car battery with 1. V emf and internal resistance r of. Ω that is supplying current to a circuit connected to a resistor R = 6. Ω. The bold lines mark off the car battery in the diagram below. r 6. Ω 1. What is the current through the 6.Ω resistance? (a) 6. A (b) 4. A (c). A (d) 1.5 A (e).67 A. While the battery is being used as described in the introduction above, the voltage across the outer terminals will be: (a) 3. V (b) 9. V (c) 1. V (d) 15. V (e) 18. V 3. While the battery is being used as described in the introduction above, what percent of the total energy is wasted as heat in the battery due to its internal resistance? (a) 5% (b) 1% (c) 5% (d) 33% (e) 67% Use the circuit indicated below for Questions 46. In this circuit R a = R b = R c. R a R b R c 4. The current through R b is the current through R a. (a) equal to (b) less than (c) greater than 5. The potential difference across R b is the potential difference across R a. (a) equal to (b) less than (c) greater than 6. If the resistance of R c is increased, the potential difference across R b will: (a) increase (b) decrease (c) not change 1
2 7. A resistor R 1 is connected to a battery. A second resistor R, where R > R 1, is then connected in parallel with R 1. After R is connected, the total current through R 1 and R will be it was before R was connected. (a) less than (b) greater than (c) the same as 8. A 4W light bulb is connected to a 1V power source with another light bulb. The second bulb could be either 4 W or 1 W. The different ways of connecting are as follows W in series with another 4W. 4W in parallel with another 4W 3. 4W in series with a 1W 4. 4W in parallel with a 1W Arrange these according to how bright the first 4W bulb shines. The order should be from brightest to dimmest. (a) 4,, 1, 3 (b) 3, 1,, 4 (c) 1 and 3 tie, and 4 tie (d) and 4 tie, 3, 1 (e) and 4 tie, 1, 3 For Questions 91, refer to the following diagram showing the motion of three particles in a magnetic field. Each particle has the same amount of charge, although it may be positive or negative as shown. The speeds of +q 1 and q are equal to each other, but only half of the speed of +q. +q 1 +q θ θ =45 o Bfield indicated by dashed arrows q Velocity of charged particles, at the moment they enter the magnetic field, shown by solid arrows 9. The magnitude of force on +q will be the magnitude of force on +q (a) times (b) times (c) equal to (d) times (e) times 1. What direction of force will the q charge experience? (a) out of the paper (b) into the paper (c) toward top of the page (d) toward bottom of the page (e) It will experience zero force 11. Semicircle in the diagram below shows the path of a moving charged particle as it enters and then exits a magnetic field that is perpendicular to the plane of the paper. What path would this same charged particle take if the strength of the magnetic field increased by four times and the particle s initial velocity doubled? (Each of the semicircles shown have radius that is twice that of the next smaller one) (a) 1 (b) (c) 3 (d) 4
3 For Questions 1, refer to the diagram below showing a simple electrical motor. The motor has a coil of one turn of wire with current flowing in the direction indicated by the arrows. The pivot, about which the loop can rotate, is indicated by the two thin solid lines. S N 1. If there is a clockwise turning torque on the loop, the current in the loop must be in the direction indicated by the arrow on the front part of the loop. (a) solid (b) dashed 13. The diagram shows a square arrangement of four parallel wires with equal current, all going straight into the plane of the paper. What is the direction of the magnetic field at the center? (a) towards top of the page (b) straight out of the page (c) towards the lower left corner (d) straight into the page (e) field is zero; no direction 14. The diagram shows a square arrangement of four parallel wires, each carrying a current. The two currents coming out of the paper are equal to each other, and the two currents going into the page are equal to each other. However, the two currents coming out of the page are twice as much as the two going into the page. What is the direction of the magnetic field at the center? (a) left to right (b) right to left (c) towards the lower left corner (d) towards the lower right corner (e) field is zero; no direction 15. The diagram shows long, straight wire carrying current i 1 =4 A, near a rectangular loop of current i =1 A. The distance a=.1 m, and the loop dimensions are b=.3 m and c=. m. What direction is the net force on the loop? (a) out of the plane of page (b) into the plane of page (c) left to right (d) right to left (e) net force is zero; no direction i 1 a i b c 16. What is the magnitude of the net force on the loop shown in Question 15? (a) 5µ 15µ (b) (c) 5µ (d) 3µ (e) zero 3
4 17. How would the answer to Question 16 change if the values of i 1 and i were switched so that i 1 =1 A and i =4 A? The net force would. (a) increase (b) decrease (c) be unchanged 18. The diagram shows four arrangements of long, parallel wires with each currents going either into or out of the plane of the paper. Which sequence correctly ranks the net force on the central wire, from least to greatest? (a) 3, 4, 1, (b), 1, 3, 4 (c) 4,, 3, 1 (d), 4, 3, 1 (e) 4, 3, 1, The diagram shows a central wire (inner shaded circle) surrounded by a conducting cylinder (outer shaded region). The central wire carries. A of current out of the plane of the paper; the cylinder carries 1. A of current into the plane of the paper. The currents in both of the two conductors are distibuted uniformly throughout the conductor. What is the magnitude of B ρ dl ρ for the outer dashed circle? µ (a) (b) (d) µ (e) 3µ (c) µ. The smallest dashed circle in the diagram for the previous question has a radius that is half the radius of the inner wire. What list gives the magnitude of B dl for each of the three Amperian loops (dashed circles) from smallest to greatest? (a) outer, middle, inner (b) middle and inner tie, outer (c) middle, inner, outer (d) inner, outer, middle (e) inner, middle, outer Extra Credit 1. What is the direction of the net force on the segment of wire carrying a current flowing in the direction shown in the diagram if placed in a magnetic field that is directed perpendicularly out of the plane of the paper? (a) right to left (b) left to right (c) toward top of page (d) toward bottom of page (e) There is no net force I B 4
5 Problem Solving (6 points). Solve each problem in the space provided 1. ( points) The diagram shows an arrangement of eight resistors: R 1 = 4. Ω, R = 4. Ω, R 3 = 8. Ω, R 4 = 3. Ω, R 5 = 3. Ω, R 6 = 1. Ω, R 7 = 4. Ω, and R 8 = 4. Ω. Determine: (a) the equivalent resistance R eq of the eight resistors; (b) the current through R 1 ; (c) the voltage across R 3 ; and (d) the rate at which heat is dissipated in this circuit while in use. R 3 R R 4 R 6 R 7 R 8 R 1 4 V R 5 5
6 . (15 points) What is the current in each of resistors R 1, R, R 3, and R 4? State clearly the amount of current and the direction of current in each resistor. The values of resistances are R 1 =. Ω, R =1. Ω, R 3 =. Ω, and R 4 =. Ω. 1. V R R 1 5. V 5. V R 4 R 3 6
7 3. (15 points) A wire of radius r =. m has a current density that varies with r and is given by J r. Find the magnetic field B at distances (a).1 m and (b).3 m from the center of the wire. Leave your answers in terms of µ and J. 4. (1 points) An electric motor plugged into a 1V outlet has a back emf of 8 V and a current of 1. A when running at normal speed. (a) What is the resistance of the motor coil windings, if a current of 1. A runs through the coil while it runs at normal speed? (b) How much current flows through the windings when it is initially turned on, before the motor has time to move? (c) How much more quickly is heat is generated in the coil windings when the motor is plugged in, but in a stalled position, compared to when it is plugged in and running at its regular speed? 7
PRACTICE EXAM 2 for Midterm 2
PRACTICE EXAM 2 for Midterm 2 Multiple Choice Questions 1) In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs?
More informationPhysics 102 Spring 2006: Final Exam MultipleChoice Questions
Last Name: First Name: Physics 102 Spring 2006: Final Exam MultipleChoice Questions For questions 1 and 2, refer to the graph below, depicting the potential on the xaxis as a function of x V x 60 40
More informationPhysics 42 Exam 3 Spring 2016 Name: M T W
Physics 42 Exam 3 Spring 2016 Name: M T W Conceptual Questions & Shorty (2 points each) 1. Which magnetic field causes the observed force? 2. If released from rest, the current loop will move a. upward
More informationDe La Salle University Manila Physics Fundamentals for Engineering 2 Quiz No. 3 Reviewer
De La Salle University Manila Physics Fundamentals for Engineering 2 Quiz No. 3 Reviewer Multiple Choice: 1. Which of the two arrangements shown has the smaller equivalent resistance between points a and
More informationPhysics 2135 Exam 2 October 20, 2015
Exam Total / 200 Physics 2135 Exam 2 October 20, 2015 Printed Name: Rec. Sec. Letter: Five multiple choice questions, 8 points each. Choose the best or most nearly correct answer. 1. A straight wire segment
More informationPhysics 42 Exam 2 PRACTICE Name: Lab
Physics 42 Exam 2 PRACTICE Name: Lab 1 2 3 4 Conceptual Multiple Choice (2 points each) Circle the best answer. 1.Rank in order, from brightest to dimmest, the identical bulbs A to D. A. C = D > B > A
More informationP202 Practice Exam 2 Spring 2004 Instructor: Prof. Sinova
P202 Practice Exam 2 Spring 2004 Instructor: Prof. Sinova Name: Date: (5)1. How many electrons flow through a battery that delivers a current of 3.0 A for 12 s? A) 4 B) 36 C) 4.8 10 15 D) 6.4 10 18 E)
More informationPhysics 212 Midterm 2 Form A
1. A wire contains a steady current of 2 A. The charge that passes a cross section in 2 s is: A. 3.2 1019 C B. 6.4 1019 C C. 1 C D. 2 C E. 4 C 2. In a Physics 212 lab, Jane measures the current versus
More informationThe next two questions pertain to the situation described below. Consider a parallel plate capacitor with separation d:
PHYS 102 Exams Exam 2 PRINT (A) The next two questions pertain to the situation described below. Consider a parallel plate capacitor with separation d: It is connected to a battery with constant emf V.
More informationPRACTICE EXAM 1 for Midterm 2
PRACTICE EXAM 1 for Midterm 2 Multiple Choice Questions 1) The figure shows three identical lightbulbs connected to a battery having a constant voltage across its terminals. What happens to the brightness
More informationCurrent and Resistance
PHYS102 Previous Exam Problems CHAPTER 26 Current and Resistance Charge, current, and current density Ohm s law Resistance Power Resistance & temperature 1. A current of 0.300 A is passed through a lamp
More informationPHYS 1102 EXAM  II. SECTION: (Circle one) 001 (TH 9:30 AM to 10:45AM) 002 (TH 3:30 PM to 4:45 PM) You have 1 hr 45 minutes to complete the test
PHYS 1102 EXAM  II SECTION: (Circle one) 001 (TH 9:30 AM to 10:45AM) 002 (TH 3:30 PM to 4:45 PM) Your Name: Student ID: You have 1 hr 45 minutes to complete the test PLEASE DO NOT START TILL YOU ARE INSTRUCTED
More informationA) I B) II C) III D) IV E) V
1. A square loop of wire moves with a constant speed v from a fieldfree region into a region of uniform B field, as shown. Which of the five graphs correctly shows the induced current i in the loop as
More information1. A ring of radius α has a charge distribution on it that varies as λ(θ) = λ 0 sin(θ), where λ 0 > 0, as shown in the figure.
EACH OF THE LECTURE QUESTIONS 122 IS WORTH 5 POINTS I. COULOMB S LAW 1. A ring of radius α has a charge distribution on it that varies as λ(θ) = λ 0 sin(θ), where λ 0 > 0, as shown in the figure. What
More informationFinal Exam: Physics Spring, 2017 May 8, 2017 Version 01
Final Exam: Physics2331  Spring, 2017 May 8, 2017 Version 01 NAME (Please Print) Your exam should have 11 pages. This exam consists of 18 multiplechoice questions (2 points each, worth 36 points), and
More informationa. Clockwise. b. Counterclockwise. c. Out of the board. d. Into the board. e. There will be no current induced in the wire
Physics 1B Winter 2012: Final Exam For Practice Version A 1 Closed book. No work needs to be shown for multiplechoice questions. The first 10 questions are the makeup Quiz. The remaining questions are
More informationPHYS 1444 Section 02 Review #2
PHYS 1444 Section 02 Review #2 November 9, 2011 Ian Howley 1 1444 Test 2 Eq. Sheet Terminal voltage Resistors in series Resistors in parallel Magnetic field from long straight wire Ampére s Law Force on
More informationPHYS 2326 University Physics II Class number
PHYS 2326 University Physics II Class number HOMEWORK SET #1 CHAPTERS: 27,28,29 (DUE JULY 22, 2013) Ch. 27.======================================================= 1. A rod of 2.0m length and a square
More informationMagnetic Fields Due to Currents
PHYS102 Previous Exam Problems CHAPTER 29 Magnetic Fields Due to Currents Calculating the magnetic field Forces between currents Ampere s law Solenoids 1. Two long straight wires penetrate the plane of
More information3. In the adjacent figure, E 1 = 6.0 V, E 2 = 5.5 V, E 3 = 2.0 V, R 1 = 1W, and R 2 = 6W. All batteries are ideal. Find the current in resistor R 1.
1. A cylindrical copper rod of length L and crosssectional area A is reformed to twice its original length with no change in volume. If the resistance between its ends was originally R, what is it now?
More informationElectromagnetism II. (a) enav Na enav Cl (b) enav Na + enav Cl (c) enav Na (d) enav Cl (e) zero
Electromagnetism II 1. Salt water contains n sodium ions (Na + ) per cubic meter and n chloride ions (Cl ) per cubic meter. A battery is connected to metal rods that dip into a narrow pipe full of salt
More information= 8.89x10 9 N m 2 /C 2
PHY303L Useful Formulae for Test 2 Magnetic Force on a moving charged particle F B = q v B Magnetic Force on a current carrying wire F B = i L B Magnetic dipole moment µ = NiA Torque on a magnetic dipole:
More informationPhysics 2401 Summer 2, 2008 Exam III
Physics 2401 Summer 2, 2008 Exam e = 1.60x1019 C, m(electron) = 9.11x1031 kg, ε 0 = 8.845x1012 C 2 /Nm 2, k e = 9.0x10 9 Nm 2 /C 2, m(proton) = 1.67x1027 kg. n = nano = 109, µ = micro = 106, m =
More informationWhich one of the pipes emits sound with the lowest frequency? Which one of the pipes emits sound with the next lowest frequency?
The figures show standing waves of sound in six organ pipes of the same length. Each pipe has one end open and the other end closed. Warning: some of the figures show situations that are not possible.
More informationTwo point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation.
Use the following to answer question 1. Two point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation. 1. Which combination of charges would yield
More informationVersion The diagram below represents lines of magnetic flux within a region of space.
1. The diagram below represents lines of magnetic flux within a region of space. 5. The diagram below shows an electromagnet made from a nail, a coil of insulated wire, and a battery. The magnetic field
More informationPHY 131 Review Session Fall 2015 PART 1:
PHY 131 Review Session Fall 2015 PART 1: 1. Consider the electric field from a point charge. As you move farther away from the point charge, the electric field decreases at a rate of 1/r 2 with r being
More informationPhysics 102 Spring 2007: Final Exam MultipleChoice Questions
Last Name: First Name: Physics 102 Spring 2007: Final Exam MultipleChoice Questions 1. The circuit on the left in the figure below contains a battery of potential V and a variable resistor R V. The circuit
More informationPHYS102 Previous Exam Problems. Induction
PHYS102 Previous Exam Problems CHAPTER 30 Induction Magnetic flux Induced emf (Faraday s law) Lenz law Motional emf 1. A circuit is pulled to the right at constant speed in a uniform magnetic field with
More informationHW7: Ch. 26 P 34, 36 Ch.27 Q 2, 4, 8, 18 P 2, 8, 17, 19, 37
Fall 12 PHY 122 Homework Solutions #7 HW7: Ch. 26 P 34, 36 Ch.27 Q 2, 4, 8, 18 P 2, 8, 17, 19, 37 Chapter 26 Problem 34 Determine the magnitudes and directions of the currents in each resistor shown in
More informationExam 2 Solutions. PHY2054 Spring Prof. Paul Avery Prof. Pradeep Kumar Mar. 18, 2014
Exam 2 Solutions Prof. Paul Avery Prof. Pradeep Kumar Mar. 18, 2014 1. A series circuit consists of an open switch, a 6.0 Ω resistor, an uncharged 4.0 µf capacitor and a battery with emf 15.0 V and internal
More informationPhysics 208: Electricity and Magnetism Final Exam, Secs May 2003 IMPORTANT. Read these directions carefully:
Physics 208: Electricity and Magnetism Final Exam, Secs. 506 510 2 May 2003 Instructor: Dr. George R. Welch, 415 EngineeringPhysics, 8457737 Print your full name: Sign your name: Please fill in your
More informationExam III Solution: Chapters 18 20
PHYS 1420: College Physics II Fall 2006 Exam III Solution: Chapters 18 20 1. The anode of a battery A) has a positive charge, while the cathode has a negative charge. B) has a negative charge, while the
More informationA) 4 B) 3 C) 2 D) 5 E) 6
Coordinator: Saleem Rao Monday, January 01, 2018 Page: 1 Q1. A standing wave having three nodes is set up in a string fixed at both ends. If the frequency of the wave is doubled, how many antinodes will
More informationPhys 2B Final Exam Name:
Phys 2B Final Exam Name: Multiple Choice (3 points each) 1. Two capacitors initially uncharged are connected in series to a battery, as shown. What is the charge on the top plate of C 1? a. 81 μc b. 18
More informationQuestion 1. Question 2
Question 1 Figure 2926 shows cross sections of two long straight wires; the lefthand wire carries current i 1 directly out of the page. The net magnetic field due to the two currents is to be zero at
More informationPhysics 2135 Exam 2 October 18, 2016
Exam Total / 200 Physics 2135 Exam 2 October 18, 2016 Printed Name: Rec. Sec. Letter: Five multiple choice questions, 8 points each. Choose the best or most nearly correct answer. 1. A light bulb having
More information4 pt. (in J) 3.A
Mark Reeves  Physics 22, Fall 2011 1 A point charge of mass 0.0699 kg and charge q = +6.87 µc is suspended by a thread between the vertical parallel plates of a parallelplate capacitor, as shown in the
More informationLECTURE 22 MAGNETIC TORQUE & MAGNETIC FIELDS. Instructor: Kazumi Tolich
LECTURE 22 MAGNETIC TORQUE & MAGNETIC FIELDS Instructor: Kazumi Tolich Lecture 22 2! Reading chapter 22.5 to 22.7! Magnetic torque on current loops! Magnetic field due to current! Ampere s law! Current
More informationExam 2, Phy 2049, Spring Solutions:
Exam 2, Phy 2049, Spring 2017. Solutions: 1. A battery, which has an emf of EMF = 10V and an internal resistance of R 0 = 50Ω, is connected to three resistors, as shown in the figure. The resistors have
More informationLouisiana State University Physics 2102, Exam 3, November 11, 2010.
Name: Instructor: Louisiana State University Physics 2102, Exam 3, November 11, 2010. Please be sure to write your name and class instructor above. The test consists of 3 questions (multiple choice), and
More informationb) (4) How large is the current through the 2.00 Ω resistor, and in which direction?
General Physics II Exam 2  Chs. 19 21  Circuits, Magnetism, EM Induction  Sep. 29, 2016 Name Rec. Instr. Rec. Time For full credit, make your work clear. Show formulas used, essential steps, and results
More informationMagnetic Fields; Sources of Magnetic Field
This test covers magnetic fields, magnetic forces on charged particles and currentcarrying wires, the Hall effect, the BiotSavart Law, Ampère s Law, and the magnetic fields of currentcarrying loops
More informationDirect Current Circuits. February 18, 2014 Physics for Scientists & Engineers 2, Chapter 26 1
Direct Current Circuits February 18, 2014 Physics for Scientists & Engineers 2, Chapter 26 1 Kirchhoff s Junction Rule! The sum of the currents entering a junction must equal the sum of the currents leaving
More informationExam II. Solutions. Part A. Multiple choice questions. Check the best answer. Each question carries a value of 4 points. The wires repel each other.
Exam II Solutions Part A. Multiple choice questions. Check the best answer. Each question carries a value of 4 points. 1.! Concerning electric and magnetic fields, which of the following is wrong?!! A
More informationCh 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance?
Ch 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance? 33. How many 100W lightbulbs can you use in a 120V
More informationName: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Name: Class: _ Date: _ w9final Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If C = 36 µf, determine the equivalent capacitance for the
More informationPhysics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5.
Physics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5. 1. Which one of the following statements best explains why tiny bits of paper are attracted to a charged rubber rod? A) Paper
More informationHomework # Physics 2 for Students of Mechanical Engineering. Part A
Homework #9 20311721 Physics 2 for Students of Mechanical Engineering Part A 5. A 25kV electron gun in a TV tube fires an electron beam having a diameter of 0.22 mm at the screen. The spot on the screen
More information21 MAGNETIC FORCES AND MAGNETIC FIELDS
CHAPTER 1 MAGNETIC FORCES AND MAGNETIC FIELDS ANSWERS TO FOCUS ON CONCEPTS QUESTIONS 1 (d) RightHand Rule No 1 gives the direction of the magnetic force as x for both drawings A and B In drawing C, the
More information1) in the direction marked 1 2) in the direction marked 2 3) in the direction marked 3 4) out of the page 5) into the page
Q1) In the figure, the current element i dl, the point P, and the three vectors (1, 2, 3) are all in the plane of the page. The direction of db, due to this current element, at the point P is: 1) in the
More informationMagnetic Force Acting on a Current Carrying Conductor IL B
Magnetic Force Acting on a Current Carrying Conductor A segment of a currentcarrying wire in a magnetic field. The magnetic force exerted on each charge making up the current is qvd and the net force
More informationLouisiana State University Physics 2102, Exam 3 April 2nd, 2009.
PRINT Your Name: Instructor: Louisiana State University Physics 2102, Exam 3 April 2nd, 2009. Please be sure to PRINT your name and class instructor above. The test consists of 4 questions (multiple choice),
More informationPhysics 2135 Exam 2 March 22, 2016
Exam Total Physics 2135 Exam 2 March 22, 2016 Key Printed Name: 200 / 200 N/A Rec. Sec. Letter: Five multiple choice questions, 8 points each. Choose the best or most nearly correct answer. B 1. An airfilled
More informationFigure 1 A) 2.3 V B) +2.3 V C) +3.6 V D) 1.1 V E) +1.1 V Q2. The current in the 12 Ω resistor shown in the circuit of Figure 2 is:
Term: 13 Wednesday, May 1, 014 Page: 1 Q1. What is the potential difference V B V A in the circuit shown in Figure 1 if R 1 =70.0 Ω, R=105 Ω, R 3 =140 Ω, ε 1 =.0 V and ε =7.0 V? Figure 1 A).3 V B) +.3
More information2/25/2014. Circuits. Properties of a Current. Conservation of Current. Definition of a Current A. I A > I B > I C B. I B > I A C. I C D. I A E.
Circuits Topics: Current Conservation of current Batteries Resistance and resistivity Simple circuits 0.1 Electromotive Force and Current Conventional current is the hypothetical flow of positive charges
More informationPhysics 3211: Electromagnetic Theory (Tutorial)
Question 1 a) The capacitor shown in Figure 1 consists of two parallel dielectric layers and a voltage source, V. Derive an equation for capacitance. b) Find the capacitance for the configuration of Figure
More informationAP Physics C  E & M
Slide 1 / 27 Slide 2 / 27 AP Physics C  E & M Current, Resistance & Electromotive Force 20151205 www.njctl.org Slide 3 / 27 Electric Current Electric Current is defined as the movement of charge from
More informationClicker Session Currents, DC Circuits
Clicker Session Currents, DC Circuits Wires A wire of resistance R is stretched uniformly (keeping its volume constant) until it is twice its original length. What happens to the resistance? 1) it decreases
More informationPhysics 2220 Fall 2010 George Williams THIRD MIDTERM  REVIEW PROBLEMS
Physics 2220 Fall 2010 George Williams THIRD MIDTERM  REVIEW PROBLEMS Solution sets are available on the course web site. A data sheet is provided. Problems marked by "*" do not have solutions. 1. An
More information2. Thus, if the current is doubled while the inductance is constant, the stored energy increases by a factor of 4 and the correct choice is (d).
34 Chapter 7. The energy stored in an inductor of inductance and carrying current is PE 1. Thus, if the current is doubled while the inductance is constant, the stored energy increases by a factor of 4
More informationPHYSICS  GIANCOLI CALC 4E CH 29: ELECTROMAGNETIC INDUCTION.
!! www.clutchprep.com CONCEPT: ELECTROMAGNETIC INDUCTION A coil of wire with a VOLTAGE across each end will have a current in it  Wire doesn t HAVE to have voltage source, voltage can be INDUCED i V Common
More informationP114 University of Rochester NAME S. Manly Spring 2010
Exam 2 (March 23, 2010) Please read the problems carefully and answer them in the space provided. Write on the back of the page, if necessary. Show your work where indicated. Problem 1 ( 8 pts): In each
More informationQ1. Ans: (1.725) =5.0 = Q2.
Coordinator: Dr. A. Naqvi Wednesday, January 11, 2017 Page: 1 Q1. Two strings, string 1 with a linear mass density of 1.75 g/m and string 2 with a linear mass density of 3.34 g/m are tied together, as
More informationPhysics 182. Assignment 4
Physics 182 Assignment 4 1. A dipole (electric or magnetic) in a nonuniform field will in general experience a net force. The electric case was the subject of a problem on the midterm exam; here we examine
More information1 (a) Define magnetic flux [1]
1 (a) Define magnetic flux..... [1] (b) Fig. 4.1 shows a generator coil of 5 turns and crosssectional area 2.5 1 3 m 2 placed in a magnetic field of magnetic flux density.35 T. The plane of the coil is
More informationCYK\2009\PH102\Tutorial 10
CYK\2009\PH02\Tutorial 0 Physics II. [G 6.3] Find the force of attraction between two magnetic dipoles, m and m 2, oriented as shown in the Fig., a distance r apart, (a) using F = 2πIRB cos θ, and (b)
More informationPhysics 2080 Extra Credit Due March 15, 2011
Physics 2080 Extra Credit Due March 15, 2011 This assignment covers chapters 1519 and is worth 10 points extra credit on the final exam. Print these pages and do all work here. Complete the questions
More informationPhysics 2B Winter 2012 Final Exam Practice
Physics 2B Winter 2012 Final Exam Practice 1) When the distance between two charges is increased, the force between the charges A) increases directly with the square of the distance. B) increases directly
More informationPH2200 Practice Final Exam Summer 2003
INSTRUCTIONS 1. Write your name and student identification number on the answer sheet. 2. Please cover your answer sheet at all times. 3. This is a closed book exam. You may use the PH2200 formula sheet
More informationDO PHYSICS ONLINE MOTORS AND GENERATORS FARADAY S LAW ELECTROMAGNETIC INDUCTION
DO PHYSICS ONLINE MOTORS AND GENERATORS FARADAY S LAW ELECTROMAGNETIC INDUCTION English Michael Faraday (1791 1867) who experimented with electric and magnetic phenomena discovered that a changing magnetic
More informationQ1. A wave travelling along a string is described by
Coordinator: Saleem Rao Wednesday, May 24, 2017 Page: 1 Q1. A wave travelling along a string is described by y( x, t) = 0.00327 sin(72.1x 2.72t) In which all numerical constants are in SI units. Find the
More informationFINAL EXAM  Physics Patel SPRING 1998 FORM CODE  A
FINAL EXAM  Physics 202  Patel SPRING 1998 FORM CODE  A Be sure to fill in your student number and FORM letter (A, B, C, D, E) on your answer sheet. If you forget to include this information, your Exam
More informationPhysics 6B Summer 2007 Final
Physics 6B Summer 2007 Final Question 1 An electron passes through two rectangular regions that contain uniform magnetic fields, B 1 and B 2. The field B 1 is stronger than the field B 2. Each field fills
More informationPHYS 272 (Spring 2018): Introductory Physics: Fields Problemsolving sessions
Figure 1: Problem 1 Figure 2: Problem 2 PHYS 272 (Spring 2018): Introductory Physics: Fields Problemsolving sessions (1). A thin rod of length l carries a total charge Q distributed uniformly along its
More informationNotes and Solved Problems for Common Exam 3 (Does not include Induction)
Notes and Solved Problems for Common Exam 3 (Does not include Induction) 8. MULTI LOOP CIRCUITS Key concepts: Multi loop circuits of batteries and resistors: loops, branches and junctions should be distinguished.
More informationExam IV, Magnetism May 1 st, Exam IV, Magnetism
Exam IV, Magnetism Prof. Maurik Holtrop Department of Physics PHYS 408 University of New Hampshire March 27 th, 2003 Name: Student # NOTE: There are 4 questions. You have until 9 pm to finish. You must
More informationPHYSICS ASSIGNMENT ES/CE/MAG. Class XII
PHYSICS ASSIGNMENT ES/CE/MAG Class XII MM : 70 1. What is dielectric strength of a medium? Give its value for vacuum. 1 2. What is the physical importance of the line integral of an electrostatic field?
More informationUniversity of the Philippines College of Science PHYSICS 72. Summer Second Long Problem Set
University of the Philippines College of Science PHYSICS 72 Summer 20122013 Second Long Problem Set INSTRUCTIONS: Choose the best answer and shade the corresponding circle on your answer sheet. To change
More informationLorik educational academyvidyanagar
Lorik educational academyvidyanagar 9849180367  Section: Senior TOPIC: CURRENT ELECTRICITY
More informationPHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism)
PHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism) NAME: August 2009
More informationElectric_Field_core_P1
Electric_Field_core_P1 1. [1 mark] An electron enters the region between two charged parallel plates initially moving parallel to the plates. The electromagnetic force acting on the electron A. causes
More informationFinal on December Physics 106 R. Schad. 3e 4e 5c 6d 7c 8d 9b 10e 11d 12e 13d 14d 15b 16d 17b 18b 19c 20a
Final on December11. 2007  Physics 106 R. Schad YOUR NAME STUDENT NUMBER 3e 4e 5c 6d 7c 8d 9b 10e 11d 12e 13d 14d 15b 16d 17b 18b 19c 20a 1. 2. 3. 4. This is to identify the exam version you have IMPORTANT
More information1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. magnetic. flux linkage / Wbturns 1.
1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. 2 magnetic 1 flux linkage / 0 10 2 Wbturns 1 2 5 10 15 t / 10 3 s Fig. 3.1 The generator has a flat coil
More informationf n+2 f n = 2 = = 40 H z
Coordinator: Dr.I.M.Nasser Monday, May 18, 2015 Page: 1 Q1. Q2. One end of a stretched string vibrates with a period of 1.5 s. This results in a wave propagating at a speed of 8.0 m/s along the string.
More information1. Write the relation for the force acting on a charge carrier q moving with velocity through a magnetic field in vector notation. Using this relation, deduce the conditions under which this force will
More informationPhysics 420 Fall 2004 Quiz 1 Wednesday This quiz is worth 6 points. Be sure to show your work and label your final answers.
Quiz 1 Wednesday This quiz is worth 6 points. Be sure to show your work and label your final answers. 1. A charge q 1 = +5.0 nc is located on the yaxis, 15 µm above the origin, while another charge q
More informationMagnetic field creation (example of a problem)
1 Magnetic field creation (example of a problem) Three long, straight wires are parallel to each other and perpendicular to the plane of the paper. Their mutual location is shown in Figure below. The currents
More informationPhysics 227 Final Exam December 18, 2007 Prof. Coleman and Prof. Rabe. Useful Information. Your name sticker. with exam code
Your name sticker with exam code Physics 227 Final Exam December 18, 2007 Prof. Coleman and Prof. Rabe SIGNATURE: 1. The exam will last from 4:00 p.m. to 7:00 p.m. Use a #2 pencil to make entries on the
More informationWhich of the following is the SI unit of gravitational field strength?
T52 [122 marks] 1. A cell is connected in series with a 2.0Ω resistor and a switch. The voltmeter is connected across the cell and reads 12V when the switch is open and 8.0V when the switch is closed.
More informationExam 2 Solutions. = /10 = / = /m 3, where the factor of
PHY049 Fall 007 Prof. Yasu Takano Prof. Paul Avery Oct. 17, 007 Exam Solutions 1. (WebAssign 6.6) A current of 1.5 A flows in a copper wire with radius 1.5 mm. If the current is uniform, what is the electron
More informationPhysics 196 Final Test Point
Physics 196 Final Test  120 Point Name You need to complete six 5point problems and six 10point problems. Cross off one 5point problem and one 10point problem. 1. Two small silver spheres, each with
More informationExam 3 November 19, 2012 Instructor: Timothy Martin
PHY 232 Exam 3 October 15, 2012 Exam 3 November 19, 2012 Instructor: Timothy Martin Student Information Name and section: UK Student ID: Seat #: Instructions Answer the questions in the space provided.
More informationPhysics 2212 G Quiz #4 Solutions Spring 2018 = E
Physics 2212 G Quiz #4 Solutions Spring 2018 I. (16 points) The circuit shown has an emf E, three resistors with resistance, and one resistor with resistance 3. What is the current through the resistor
More information1) Two lightbulbs, one rated 30 W at 120 V and another rated 40 W at 120 V, are arranged in two different circuits.
1) Two lightbulbs, one rated 30 W at 120 V and another rated 40 W at 120 V, are arranged in two different circuits. a. The two bulbs are first connected in parallel to a 120 V source. i. Determine the
More informationSolutions to PHY2049 Exam 2 (Nov. 3, 2017)
Solutions to PHY2049 Exam 2 (Nov. 3, 207) Problem : In figure a, both batteries have emf E =.2 V and the external resistance R is a variable resistor. Figure b gives the electric potentials V between the
More informationAP Physics C 1998 Multiple Choice Questions Electricity and Magnetism
AP Physics C 1998 Multiple Choice Questions Electricity and Magnetism The materials included in these files are intended for use by AP teachers for course and exam preparation in the classroom; permission
More informationPhysics 4B Chapter 29: Magnetic Fields Due to Currents
Physics 4B Chapter 29: Magnetic Fields Due to Currents Nothing can bring you peace but yourself. Ralph Waldo Emerson The foolish man seeks happiness in the distance, the wise man grows it under his feet.
More informationPhysics 55 Final Exam Fall 2012 Dr. Alward Page 1
Physics 55 Final Exam Fall 2012 Dr. Alward Page 1 1. The specific heat of lead is 0.030 cal/g C. 300 g of lead shot at 100 C is mixed with 100 g of water at 70 C in an insulated container. The final temperature
More informationPhysics 8.02 Exam Two Equation Sheet Spring 2004
Physics 8.0 Exam Two Equation Sheet Spring 004 closed surface EdA Q inside da points from inside o to outside I dsrˆ db 4o r rˆ points from source to observer V moving from a to b E ds 0 V b V a b E ds
More information