PHY 131 Review Session Fall 2015 PART 1:


 Arthur French
 3 years ago
 Views:
Transcription
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 the distance away from the charge. Now consider the electric field of a dipole. As you move farther away from the dipole, will the electric field decrease faster, slower, or the at the same rate as 1/r 2? Answer: The electric field falls off faster than 1/r Given the diagram of the two point charges, in what region will there be some location where the net electric field is zero? Answer: Region 1 3. The diagram shows a system of three point charges. If q 1 and q 2 are both 50cm from point x, and q 3 is 150cm from point x, calculate the electric field vector at point x.
2 Answer: E = x y V/m 4. Given the same electric field as question 2, calculate the force that a neutral charge experiences at point x, and the force a 6µC point charge would experience at point x. Answer: Neutral charge experiences 0 N, 6µC point charge experiences force F = x 23973y N. 5.
3 The half spherical shell has a radius b and a uniform surface charge density p s. At the center of the sphere (point O), in what direction will the electric field point? Answer: in the z direction pointing downward. 6. The ring of charge has a linear charge density λ = 2 C/m. The radius a = 4 m. Find the total electric field at point P, 15 m away from the center of the ring on the ring s central axis. Answer: E = 1.21*10 8 x V/m
4 7. a. What is the equivalent capacitance of the circuit? b. What is the charge on the 12µF capacitor? c. What is the voltage drop across the 12µF capacitor? d. What is the voltage drop across the 6µF capacitor? e. What is the charge on the 3µF capacitor? Answer: a) Equivalent Capacitance = 5.14µF b) Q = 51.4 µc c) V = 4.29 V d) V = V e) Q = 1.71 µc 8. a. Consider the circuit with an initially uncharged capacitor and two identical resistors. At the instant the switch is closed, what is the value of the currents I 1 and I 2? b. Assume the switch has been closed for a very long time, and is then reopened. Does the magnitude and/or direction of the current I 1 change?
5 c. Assume the switch has been closed for a very long time. What is the magnitude of current I 1? Answer: a) I 1 = ε/r I 2 = 0 b) Neither the magnitude or direction change c) I 1 = 0 PART 2: 1) Time Dependent Circuits: ( is the battery voltage (or other source of emf)) Time Constant Charging /Connected to source emf E Discharging/disconnected from emf 2) Given a distribution of (moving)charges and currents, find the magnetic field produced : a) Point charge moving with velocity v at point P (distance vector ) : Direction of field is perpendicular to the plane formed by velocity vector and distance vector (Use right hand thumb rule) Biot Savart Law
6 b) Very long straight wire at a distance r Direction of field is tangential to the circle of radius r c) Short straight segment Where the angles are the angles made by two ends at the point P and r is the perpendicular distance of the point from the segment. Direction of field is still tangential to the circle of radius r d) Center of single current loop of radius R and current I : Direction of field is perpendicular to the plane of circle e) At a distance X on the axis of single current loop of radius R and current I: Direction of field is perpendicular to the plane of circle f) Inside a long solenoid of N turns and length L If n turns/length is given then Direction of field is along the axis of solenoid 2. Magnetic field is present in the system and we have a moving charge or a current carrying conductor Magnetic Force on that element (Field produced by the charge or current is not considered while calculating magnetic force on that element) a) Charge q moving with velocity and magnetic field : Force is perpendicular to the plane formed by velocity vector and magnetic field vector b) Current I in an element of length dl:
7 If length l and magnetic field B do not change their direction c) Magnetic Torque on current loop: Magnetic moment Where is unit vector perpendicular to the plane of current loop Potential energy of a current loop: d) Induction Flux in a single loop: (If B is constant all along the area) Faraday s Law (for one loop): Self inductance Selfinduced emf Mutual inductance Induced emf means the flux in #2 due to #1 Magnetic energy: Stored in an inductor Energy Density in a B field
8 Current loop in a magnetic field. a) Net magnetic force on the current loop is equal to zero. b) There is a net torque on the current loop c) This torque will try to bring the axis of loop parallel to the direction of magnetic field so that the magnetic flux is maximum. d) If the current loop moves, an emf is induced in the loop which tries to increase current in the direction such that the magnetic field produced is opposite to the direction of given field Questions: 1) A beam of protons traveling at 1.20 km/s enters a uniform magnetic field, traveling perpendicular to the field. The beam exits the magnetic field, leaving the field in a direction perpendicular to its original direction. The beam travels a distance of cm while in the field. What is the magnitude of the magnetic field? 2) A long wire carrying 4.5A of current makes two 90 o bends. The bent part of the wire passes through a uniform 0.24 T magnetic field as directed as shown and confined to the limited space. Find the magnitude and direction of the force that the magnetic exerts on the wire. 3) Two parallel wires are 5 cm apart and carry currents in opposite directions. Find the magnitude and direction of the magnetic field at point P due to two 1.5 mm segments of wire that are opposite each other and each 8 cm form P.
9 4) A circular loop of wire is in a region of spatially uniform magnetic field. Determine the direction of the induced current in the loop a) B is increasing b) B is decreasing, c) B is constant. Explain your reasoning. 5) When the current in a toroidal solenoid is changing at a rate of A/s, the magnitude of the induce emf is 12.6mV. When the current equals 1.4 A, the average flux through each turn of the solenoid is Wb. How many turns does the solenoid have? 6) Switch S1 is closed while switch S2 is kept open. The inductance is L = H and the resistance is R = 120 Ohm. a) When the current has reached its final value, the energy stored in the inductor is 0.26 J. What is the emf E of the battery? b) After the current has reached its final value, S1 is opened and S2 is closed. How much time does it take for the energy stored in the inductor to decrease to 0.13 J, half the original value? Answer Key : 1) 0.67 * 10 ^(3) T 2) N, 63.4 degree below the direction of the current in the upper wire segment 4) A) Clockwise B) Counter clockwise C) Zero 5) 252 6) A) 255 V B) 0.67ms
Physics 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 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 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 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 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 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 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 informationELECTRO MAGNETIC FIELDS
SET  1 1. a) State and explain Gauss law in differential form and also list the limitations of Guess law. b) A square sheet defined by 2 x 2m, 2 y 2m lies in the = 2m plane. The charge density on the
More informationPhysics 106, Section 1
Physics 106, Section 1 Magleby Exam 2, Summer 2012 Exam Cid You are allowed a pencil and a testing center calculator. No scratch paper is allowed. Testing center calculators only. 1. A circular coil lays
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 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 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 informationPHYS 241 EXAM #2 November 9, 2006
1. ( 5 points) A resistance R and a 3.9 H inductance are in series across a 60 Hz AC voltage. The voltage across the resistor is 23 V and the voltage across the inductor is 35 V. Assume that all voltages
More informationAP Physics C. Magnetism  Term 4
AP Physics C Magnetism  Term 4 Interest Packet Term Introduction: AP Physics has been specifically designed to build on physics knowledge previously acquired for a more in depth understanding of the world
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 informationExam 2 Solutions. Note that there are several variations of some problems, indicated by choices in parentheses.
Exam 2 Solutions Note that there are several variations of some problems, indicated by choices in parentheses. Problem 1 Part of a long, straight insulated wire carrying current i is bent into a circular
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 informationMansfield Independent School District AP Physics C: Electricity and Magnetism Year at a Glance
Mansfield Independent School District AP Physics C: Electricity and Magnetism Year at a Glance First SixWeeks Second SixWeeks Third SixWeeks Lab safety Lab practices and ethical practices Math and Calculus
More informationSCS 139 Applied Physic II Semester 2/2011
SCS 139 Applied Physic II Semester 2/2011 Practice Questions for Magnetic Forces and Fields (I) 1. (a) What is the minimum magnetic field needed to exert a 5.4 1015 N force on an electron moving at 2.1
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 informationAP Physics C. Electric Circuits III.C
AP Physics C Electric Circuits III.C III.C.1 Current, Resistance and Power The direction of conventional current Suppose the crosssectional area of the conductor changes. If a conductor has no current,
More information PHYS 2326 University Physics II Class number 
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 informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A jeweler needs to electroplate gold (atomic mass 196.97 u) onto a bracelet. He knows
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 informationAP Physics C. Electricity  Term 3
AP Physics C Electricity  Term 3 Interest Packet Term Introduction: AP Physics has been specifically designed to build on physics knowledge previously acquired for a more in depth understanding of the
More informationAP Physics C. Inductance. Free Response Problems
AP Physics C Inductance Free Response Problems 1. Two toroidal solenoids are wounded around the same frame. Solenoid 1 has 800 turns and solenoid 2 has 500 turns. When the current 7.23 A flows through
More informationPhysics 208, Spring 2016 Exam #3
Physics 208, Spring 206 Exam #3 A Name (Last, First): ID #: Section #: You have 75 minutes to complete the exam. Formulae are provided on an attached sheet. You may NOT use any other formula sheet. You
More informationwe can said that matter can be regarded as composed of three kinds of elementary particles; proton, neutron (no charge), and electron.
Physics II we can said that matter can be regarded as composed of three kinds of elementary particles; proton, neutron (no charge), and electron. Particle Symbol Charge (e) Mass (kg) Proton P +1 1.67
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 informationDescribe the forces and torques exerted on an electric dipole in a field.
Learning Outcomes  PHYS 2015 Electric charges and forces: Describe the electrical nature of matter; Explain how an object can be charged; Distinguish between electrical conductors and insulators and the
More informationPhysics Jonathan Dowling. Final Exam Review
Physics 2102 Jonathan Dowling Physics 2102 Final Exam Review A few concepts: electric force, field and potential Electric force: What is the force on a charge produced by other charges? What is the force
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 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 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 informationCalculus Relationships in AP Physics C: Electricity and Magnetism
C: Electricity This chapter focuses on some of the quantitative skills that are important in your C: Mechanics course. These are not all of the skills that you will learn, practice, and apply during the
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 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 informationPHYS 272 (Spring 2018): Introductory Physics: Fields Homeworks
PHYS 272 (Spring 2018): Introductory Physics: Fields Homeworks Note: the 1st homework is simply signing the honor pledge (but still it is compulsory); the actual homework starts with #2. And, please sign
More informationInduction and Inductance
Welcome Back to Physics 1308 Induction and Inductance Michael Faraday 22 September 1791 25 August 1867 Announcements Assignments for Tuesday, November 6th:  Reading: Chapter 30.630.8  Watch Videos:
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 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 informationPHYSICS : CLASS XII ALL SUBJECTIVE ASSESSMENT TEST ASAT
PHYSICS 202 203: CLASS XII ALL SUBJECTIVE ASSESSMENT TEST ASAT MM MARKS: 70] [TIME: 3 HOUR General Instructions: All the questions are compulsory Question no. to 8 consist of one marks questions, which
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 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 information/20 /20 /20 /60. Dr. Galeazzi PHY207 Test #3 November 20, I.D. number:
Signature: Name: I.D. number: You must do ALL the problems Each problem is worth 0 points for a total of 60 points. TO GET CREDIT IN PROBLEMS AND 3 YOU MUST SHOW GOOD WORK. CHECK DISCUSSION SECTION ATTENDED:
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 information1 = k = 9 $10 9 Nm 2 /C 2 1 nanocoulomb = 1 nc = 109 C. = 8.85 #10 $12 C 2 /Nm 2. F = k qq 0. U = kqq 0. E % d A! = q enc. V = $ E % d!
Equations pv = nrt pv γ = constant (Q=0) Q = nc v ΔΤ (constant V) γ=c p /C v C p =C v +R C v = 3 R (monatomic ideal gas) 2 ΔU=QW R=8.3 J/molK ds = dq T W = " e = W Q H pdv e c =1" T C T H For H 2 O: L
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 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 informationPhysics 1308 Exam 2 Summer 2015
Physics 1308 Exam 2 Summer 2015 E201 2. The direction of the magnetic field in a certain region of space is determined by firing a test charge into the region with its velocity in various directions in
More informationAP Physics C Mechanics Objectives
AP Physics C Mechanics Objectives I. KINEMATICS A. Motion in One Dimension 1. The relationships among position, velocity and acceleration a. Given a graph of position vs. time, identify or sketch a graph
More informationQuestions A hair dryer is rated as 1200 W, 120 V. Its effective internal resistance is (A) 0.1 Ω (B) 10 Ω (C) 12Ω (D) 120 Ω (E) 1440 Ω
Questions 441 36. Three 1/ µf capacitors are connected in series as shown in the diagram above. The capacitance of the combination is (A).1 µf (B) 1 µf (C) /3 µf (D) ½ µf (E) 1/6 µf 37. A hair dryer is
More informationPRACTICE 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 information1. In Young s double slit experiment, when the illumination is white light, the higherorder fringes are in color.
TRUEFALSE STATEMENTS: ELECTRICITY: 1. Electric field lines originate on negative charges. 2. The flux of the electric field over a closed surface is proportional to the net charge enclosed by the surface.
More informationSlide 1 / 26. Inductance 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
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 informationELECTROMAGNETIC INDUCTION AND FARADAY S LAW
ELECTROMAGNETIC INDUCTION AND FARADAY S LAW Magnetic Flux The emf is actually induced by a change in the quantity called the magnetic flux rather than simply py by a change in the magnetic field Magnetic
More informationChapter 30 Sources of the magnetic field
Chapter 30 Sources of the magnetic field Force Equation Point Object Force Point Object Field Differential Field Is db radial? Does db have 1/r2 dependence? BiotSavart Law SetUp The magnetic field is
More informationMultiple Choice Questions for Physics 1 BA113 Chapter 23 Electric Fields
Multiple Choice Questions for Physics 1 BA113 Chapter 23 Electric Fields 63 When a positive charge q is placed in the field created by two other charges Q 1 and Q 2, each a distance r away from q, 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 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 informationSolution for Fq. A. up B. down C. east D. west E. south
Solution for Fq A proton traveling due north enters a region that contains both a magnetic field and an electric field. The electric field lines point due west. It is observed that the proton continues
More information= e = e 3 = = 4.98%
PHYS 212 Exam 2  Practice Test  Solutions 1E In order to use the equation for discharging, we should consider the amount of charge remaining after three time constants, which would have to be q(t)/q0.
More informationPHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism)
PHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism) NAME: August 2009
More informationPHYS 212 Final Exam (Old Material) Solutions  Practice Test
PHYS 212 Final Exam (Old Material) Solutions  Practice Test 1E If the ball is attracted to the rod, it must be made of a conductive material, otherwise it would not have been influenced by the nearby
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 informationPhysics 6B. Practice Final Solutions
Physics 6B Practice Final Solutions . Two speakers placed 4m apart produce sound waves with frequency 45Hz. A listener is standing m in front of the left speaker. Describe the sound that he hears. Assume
More informationcancel each other out. Thus, we only need to consider magnetic field produced by wire carrying current 2.
PC1143 2011/2012 Exam Solutions Question 1 a) Assumption: shells are conductors. Notes: the system given is a capacitor. Make use of spherical symmetry. Energy density, =. in this case means electric field
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 informationPhysics 1302W.400 Lecture 33 Introductory Physics for Scientists and Engineering II
Physics 1302W.400 Lecture 33 Introductory Physics for Scientists and Engineering II In today s lecture, we will discuss generators and motors. Slide 301 Announcement Quiz 4 will be next week. The Final
More informationPhysics for Scientists and Engineers 4th Edition 2017
A Correlation and Narrative Summary of Physics for Scientists and Engineers 4th Edition 2017 To the AP Physics C: Electricity and Magnetism Course Description AP is a trademark registered and/or owned
More information2 Coulomb s Law and Electric Field 23.13, 23.17, 23.23, 23.25, 23.26, 23.27, 23.62, 23.77, 23.78
College of Engineering and Technology Department of Basic and Applied Sciences PHYSICS I Sheet Suggested Problems 1 Vectors 2 Coulomb s Law and Electric Field 23.13, 23.17, 23.23, 23.25, 23.26, 23.27,
More informationQuestion 1. Question 2. Question 3
Question 1 Switch S in in the figure is closed at time t = 0, to begin charging an initially uncharged capacitor of capacitance C = 18.2 μf through a resistor of resistance R = 22.3 Ω. At what time (in
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 informationPHYS 2135 Exam II March 20, 2018
Exam Total /200 PHYS 2135 Exam II March 20, 2018 Name: Recitation Section: Five multiple choice questions, 8 points each. Choose the best or most nearly correct answer. For questions 69, solutions must
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 informationPhysics Physics 2102
Physics 2102 Jonathan Dowling Physics 2102 Exam 2: Review Session Chapters 24.928.8 / HW0406 Some links on exam stress: http://appl003.lsu.edu/slas/cas.nsf/$content/stress+management+tip+1 http://wso.williams.edu/orgs/peerh/stress/exams.html
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 information(a) zero. B 2 l 2. (c) (b)
1. Two identical coaxial circular loops carry equal currents circulating in the same direction: (a) The current in each coil decrease as the coils approach each other. (b) The current in each coil increase
More informationExam 2 Solutions. ε 3. ε 1. Problem 1
Exam 2 Solutions Problem 1 In the circuit shown, R1=100 Ω, R2=25 Ω, and the ideal batteries have EMFs of ε1 = 6.0 V, ε2 = 3.0 V, and ε3 = 1.5 V. What is the magnitude of the current flowing through resistor
More informationChapter 23 Magnetic Flux and Faraday s Law of Induction
Chapter 23 Magnetic Flux and Faraday s Law of Induction 1 Overview of Chapter 23 Induced Electromotive Force Magnetic Flux Faraday s Law of Induction Lenz s Law Mechanical Work and Electrical Energy Generators
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 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 informationPhysics 24 Exam 2 March 18, 2014
Exam Total / 200 Physics 24 Exam 2 March 18, 2014 Printed Name: Rec. Sec. Letter: Five multiple choice questions, 8 points each. Choose the best or most nearly correct answer. 1. You need to store electrical
More informationPHYS 2212 (Modern) Review. Electric Force and Fields
PHYS 2212 (Modern) Review Electric Force and Fields A permanent dipole and a charged particle lie on the xaxis and are separated by a distance d as indicated in the figure. The dipole consists of positive
More informationCLASS XII WB SET A PHYSICS
PHYSICS 1. Two cylindrical straight and very long non magnetic conductors A and B, insulated from each other, carry a current I in the positive and the negative zdirection respectively. The direction
More informationModule 3: Electromagnetism
Module 3: Electromagnetism Lecture  Magnetic Field Objectives In this lecture you will learn the following Electric current is the source of magnetic field. When a charged particle is placed in an electromagnetic
More informationUNITI INTRODUCTION TO COORDINATE SYSTEMS AND VECTOR ALGEBRA
SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) Subject with Code : EMF(16EE214) Sem: IIB.Tech & IISem Course & Branch: B.Tech  EEE Year
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 informationChapter 12. Magnetism and Electromagnetism
Chapter 12 Magnetism and Electromagnetism 167 168 AP Physics Multiple Choice Practice Magnetism and Electromagnetism SECTION A Magnetostatics 1. Four infinitely long wires are arranged as shown in the
More informationPhys102 Second Major161 Zero Version Coordinator: Dr. Naqvi Monday, December 12, 2016 Page: 1
Coordinator: Dr. Naqvi Monday, December 12, 2016 Page: 1 Q1. Two point charges, with charges q1 and q2, are placed a distance r apart. Which of the following statements is TRUE if the electric field due
More informationPHY 114 Summer Midterm 2 Solutions
PHY 114 Summer 009  Midterm Solutions Conceptual Question 1: Can an electric or a magnetic field, each constant in space and time, e used to accomplish the actions descried elow? Explain your answers.
More information2) A linear charge distribution extends along the x axis from 0 to A (where A > 0). In that region, the charge density λ is given by λ = cx where c
2) A linear charge distribution extends along the x axis from 0 to A (where A > 0). In that region, the charge density λ is given by λ = cx where c is a constant. a) Find the electric potential valid for
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 informationExam 2 Solutions. Applying the junction rule: i 1 Applying the loop rule to the left loop (LL), right loop (RL), and the full loop (FL) gives:
PHY61 Eam Solutions 1. [8 points] In the circuit shown, the resistance R 1 = 1Ω. The batter voltages are identical: ε1 = ε = ε3 = 1 V. What is the current (in amps) flowing through the middle branch from
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 informationFirst Name: Last Name: Section: n 1. March 26, 2003 Physics 202 EXAM 2
First Name: Last Name: Section: n 1 March 26, 2003 Physics 202 EXAM 2 Print your name and section clearly on all five pages. (If you do not know your section number, write your TA s name.) Show all work
More informationPhys102 Second Major133 Zero Version Coordinator: A.A.Naqvi Tuesday, August 05, 2014 Page: 1
Coordinator: A.A.Naqvi Tuesday, August 05, 2014 Page: 1 Q1. igure 1 shows four situations in which a central proton (P) is surrounded by protons or electrons fixed in place along a halfcircle. The angles
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 information