1. Two charges +Q and 3Q are placed in opposite corners of a square. The work required to move a test charge q from point A to point B is:


 Isabella Gilmore
 1 years ago
 Views:
Transcription
1 Electric Potential & Capacitance Multiple Choice 1. Two charges +Q and 3Q are placed in opposite corners of a square. The work required to move a test charge q from point A to point B is: (A) dependent on the path taken from A to B (B) directly proportional to the distance between A and B (C) positive (D) zero (E) negative. Two charges +Q and Q are placed at two corners of an equilateral triangle. What is the potential at point C? (A) kq r kq (B) r (C)kQ r (D) kq r (E) kq r 3. A positive charge +Q is located at point 3 m from the origin. What is the sign and size of the second charge Q x located at point m from the origin, if the electric potential at the origin is zero? (A) 4Q 3 (B) 4Q 3 (C) 5Q 3 (D) 5Q 3 (E) Q 3
2 4. A conducting sphere of radius a is charged positively with a charge +Q. A conducting spherical shell with radius b and charge Q surrounds the sphere. Which of the following graphs best represents the electric potential V as a function of r? (A) (B) (C) (D) (E)
3 5. A positive charged particle q is accelerated through a uniform electric field E starting from rest. If v 0 is the velocity of the particle at the end of distance d, what is the velocity of the particle at the end of d? (A) v 0 (B) 3v 0 (C) v 0 (D) 4v 0 (E) 8v 0 6. A conducting sphere of radius R is charged with a positive charge +Q. Which of the following represents the magnitude of the electric field E and the potential V as functions of r, the distance from the center of the sphere, when r < R? E V (A) 0 kq/r (B) 0 kq/r (C) 0 0 (D) kq/r 0 (E) kq/r 0
4 7. A conducting sphere of radius R is charged with a positive charge +Q. Which of the following represents the magnitude, of the electric field E and the potential V as functions of r, the distance from the center of sphere, when r > R? E V (A) kq/r kq/r (B) kq/r kq/r (C) kq/r kq/r (D) kq/r kq/r (E) kq/r kq/r 8. Positive charge Q is uniformly distributed over a thin ring of radius a, that lies in a plane perpendicular to the xaxis with its center at the origin 0, as shown above. The potential V at points on the xaxis is represented by which of the following functions? (A) V x kq ( ) x a kq V ( x) a x (B) V ( x ) a kq x kq x (C) V ( x ) V x (D) ( ) kq x (E)
5 9. Two positive and two negative charges are arranged at the corners of a square, as shown above. At the center C of the square, the potential due to one charge alone is V o and the electric field due to one charge alone has magnitude E o. Which of the following correctly gives the electric potential and the magnitude of the electric field at the center of the square due to all four charges? Electric Potential Electric Field A) Zero Zero B) Zero (E o ) C) V o 4E o D) 4 V o Zero E) 4 V o E o 10. What is the radial component of the electric field associated with the potential V = ar 3 where a is a constant? A) 3ar 4 B) ar 3 C) 4ar D) 3ar 4 E) ar 11. Two concentric, spherical conducting shells have radii a and b and equal charges +Q, as shown above. Which of the following represents the electric potential as a function of distance r in the region r > b? Assume that electric potential is zero at an infinite distance from the spheres. Q A) B) Q C) Q Q Q D) E) 4πƐ 0 r πɛ 0 r πɛ 0 r πɛ 0 b 4πƐ 0 r
6 1. Two concentric, spherical conducting shells have radii a and b and equal charges +Q, as shown above. Which of the following represents the electric potential as a function of distance r in the region a < r < b? Assume that electric potential is zero at an infinite distance from the spheres. A) Q 4πƐ 0 a B) Q C) Q πɛ 0 b πɛ 0 b D) Q πɛ 0 ( 1 a + 1 b ) E) Q 4πƐ 0 ( 1 r + 1 b ) 13. The electric potential of an isolated conducting sphere of radius R is V 0. What is the electric potential at the center of the sphere? A) V 0 B) V 0 C) zero D) V0 E) V Two charges +Q and +Q are located on the xaxis. The electric potential is zero at which of the following points? (A) A (B) B (C) C (D) D (E) None of these points the potential is zero.
7 15. The graph shows the electric potential V as a function of distance r. At which point is the electric field positive with respect to +r? (A) A (B) B (C) C (D) D (E) E 16. A positive charge of 6µC moves between two points through an electric field. Work done by the electric field on the charge is 30 mj. What is the potential difference between the two points? (A) 3kV (B) 4kV (C) 5kV (D) 6kV (E) 9kV 17. An electron e moves in a circular orbit around a proton +e of a constant radius R. Assuming that the proton is stationary, which of the following represents the kinetic energy of the twoparticle system? (A) e R (B) e R (C) e (D) R e R 1 (E) In a region of spherical symmetry, the electric potential as a function of distance x is presented by the following formula V(x) = bx 3.What is the magnitude of the electric field at a point of distance x = a from the origin? (A) ba (B) ba (C) 3ba (D) 3ba (E) ba 3 0 e R 19. A parallel plate capacitor has a capacitance C o. A second parallel plate capacitor has plates with twice the area and twice the separation of the first capacitor. The capacitance of the second capacitor is most nearly: (A) ¼C o (B) ½C o (C) C o (D) C o (E) 4C o
8 0. Three 1microfarad capacitors are connected in series. The equivalent capacitance of the set of capacitors is: (A) 4 F (B) F (C) 3 F (D) 9 F (E) 18 F 1. Two 4microfarad capacitors are connected in series with a 1volt battery. The energy stored in each capacitor is: (A) 144 J (B) 4 J (C) 1 J (D) 36 J (E) 7 J. An isolated capacitor with air between its plates has a potential difference V o and a charge Q o. After the space between the plates is filled with oil, the difference in potential is V and the charge is Q. Which of the following pairs of relationships is correct? (A) Q=Q o and V>V o (B) Q=Q o and V<V o (C) Q>Q o and V=V o (D) Q< Q o and V<V o (E) Q>Q o and V>V o 3. Which of the following can be used along with fundamental constants, but no other quantities, to calculate the magnitude of the electric field between the plates of a parallel plate capacitor whose plate dimensions and spacing are not known? (A) The flux between the plates (B) The total charge on either plate (C) The potential difference between the plates (D) The surface charge density on either plate (E) The total energy stored in the capacitor 4. When two identical parallel plate capacitors are connected in series, which of the following is true of the equivalent capacitance? (A) It depends on the charge on each capacitor. (B) It depends on the potential difference across both capacitors. (C) It is larger than the capacitance of each capacitor. (D) It is smaller than the capacitance of each capacitor. (E) It is the same as the capacitance of each capacitor.
9 5. Two conducting spheres have charges +Q and Q respectively. The inner shell has a radius a and outer shell has a radius b. What is the capacitance of the system of two shells? (A) 4πƐ 0ab b+a (B) 4πƐ 0ab b a (C) 4πƐ 0 b+a (D) πɛ 0ab b a (E) πɛ 0ab b a 6. A sheet of mica is inserted between the plates of an isolated charged parallel plate capacitor. Which of the following statements is true? (A) The capacitance decreases (B) The potential difference across the capacitor decreases (C) The energy of the capacitor does not change (D) The charge on the capacitor plates decreases (E) The electric field between the capacitor plates increases 7. Five 4µF capacitors are connected in one network. What is the capacitance of the circuit? (A) F (B) 4 F (C) 6 F (D) 1 F (E) 4 F 8. Five 4µF capacitors are connected in one network. What potential difference must be applied between points Y and Z if the circuit is connected to a 1 V battery? A) 4 V B) 3V C) 6 V D) 9 V E) 18 V
10 9. A capacitor C 0 has two parallel plates each of area A separated by a distance d. Another capacitor with identical dimensions is filled with a dielectric of dielectric constant κ that covers the area of one plate and 1/3 of the separation d. What is the capacitance of second capacitor in terms of C 0? (A) 3κC 0 κ+1 (B) 3C 0 κ (C) 3C 0 κ (D) C 0 κ+1 (E) C 0 κ What is the potential difference between two points in an electric field if 1 J of work is required to move 1 C of charge between the points? (A) V (B) 3 V C) 5 V D) 1 V E) 0 V 31. A capacitor C 0 has two parallel plates each of area A separated by a distance d. Another capacitor with identical dimensions is filled with a dielectric of dielectric constant κ that fills in the separation between the plates and covers a half of the area of each plate. What is the capacitance of the second capacitor in terms of C 0? (A) (κ+1)c 0 3 (B) κc 0 3 (C) C 0 3 (D) κc 0 (E) (κ+1)c 0
11 3. A parallel plate capacitor has charge +Q on one plate and charge Q on the other. The plates, each of area A, are a distance d apart and are separated by a vacuum. A single proton of charge +e, released from rest at the surface of the positively charged plate, will arrive at the other plate with kinetic energy equal to: (A) eqd Ɛ 0 A (B) Ɛ 0Qd ea (C) Ɛ 0QA d (D) Ɛ 0Qe da (E) Ɛ 0Q da 33. An isolated parallel plate capacitor is charged to a maximum energy U 0. A dielectric plate with a dielectric constant κ is inserted in the space between the plates. What is the energy of the capacitor with the dielectric plate? (A) κu 0 (B) U 0 κ (C) (κ+1)u 0 (D) κu 0 (E) (κ+1)u What is the capacitance of this given circuit? (A) 4.4 µf (B) 3 µf (C) 4 µf (D) 8 µf (E) 4.6 µf 35. A capacitor is made of two identical conducting plates parallel to each other and separated by a distance d. The capacitor is charged to a potential difference of V o by a battery, which is then disconnected. If edge effects are negligible, what is the magnitude of the electric field between the plates? (A) V o d (B) V o /d (C) d/v o (D) V o /d (E) V o /d
12 36. A sheet of insulating plastic material is inserted between the plates of a fully charged capacitor, which is disconnected from a battery. What effect does this have on the charge and potential difference between the plates? (A) Charge increases and voltage decreases (B) Charge decreases and voltage increases (C) Charge stays unchanged and voltage increases (D) Charge stays unchanged and voltage decreases (E) Voltage stays unchanged and charge increases 37. An isolated parallel plate capacitor has capacitance C and charge Q. The separation between the plates is doubled. The work required to separate the plates is: (A) Q /4C (B) Q /C (C) Q /C (D) Q /C (E) 4Q /C Question A C E B D 5V 10V 15V 38. What is the direction of the electric field at point C? (A) (B) (C) (D) (E) 39. How much work is required by an external force to move a particle of charge 6x106 C from point A to point E? (A) 6x107 J (B) 3x105 J (C) 6x105 J (D) 3x107 J (E) 6x104 J 40. If the distance between B and D is 103 meters, what is the strength of the electric field at B? (A) 5x10  N/C (B) 10x10 3 N/C (C) 5x10 3 N/C (D) 10x10  N/C (E) 5x101 N/C
13 Answers 1. D. C 3. B 4. B 5. A 6. A 7. D 8. B 9. B 10. D 11. C 1. E 13. B 14. E 15. D 16. C 17. B 18. D 19. C 0. A 1. E. B 3. D 4. D 5. B 6. B 7. A 8. C 9. A 30. D 31. E 3. A 33. B 34. A 35. B 36. D 37. B 38. A
14 39. C 40. C
Exam 1 Solutions. PHY2054 Fall 2014. Prof. Paul Avery Prof. Andrey Korytov Sep. 26, 2014
Exam 1 Solutions Prof. Paul Avery Prof. Andrey Korytov Sep. 26, 2014 1. Charges are arranged on an equilateral triangle of side 5 cm as shown in the diagram. Given that q 1 = 5 µc and q 2 = q 3 = 2 µc
More informationHW6 Solutions Notice numbers may change randomly in your assignments and you may have to recalculate solutions for your specific case.
HW6 Solutions Notice numbers may change randomly in your assignments and you may have to recalculate solutions for your specific case. Tipler 22.P.053 The figure below shows a portion of an infinitely
More informationCHAPTER 26 ELECTROSTATIC ENERGY AND CAPACITORS
CHAPTER 6 ELECTROSTATIC ENERGY AND CAPACITORS. Three point charges, each of +q, are moved from infinity to the vertices of an equilateral triangle of side l. How much work is required? The sentence preceding
More informationElectrostatics Problems
Name AP Physics B Electrostatics Problems Date Mrs. Kelly 1. How many excess electrons are contained in a charge of 30 C? 2. Calculate and compare the gravitational and electrostatic force between an electron
More informationChapter 16 Electric Forces and Fields
Chapter 16 Electric Forces and Fields 2. How many electrons does it take to make one coulomb of negative charge? A. 1.00 10 9 B. 6.25 10 18 C. 6.02 10 23 D. 1.66 10 18 E. 2.24 10 4 10. Two equal point
More informationPhysics 1653 Exam 3  Review Questions
Physics 1653 Exam 3  Review Questions 3.0 Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a negatively charged rod is held near, but
More informationLast Name: First Name: Physics 102 Spring 2007: Exam #1 MultipleChoice Questions 1. Two small conducting spheres attract one another electrostatically. This can occur for a variety of reasons. Which of
More informationFall 12 PHY 122 Homework Solutions #4
Fall 12 PHY 122 Homework Solutions #4 Chapter 23 Problem 45 Calculate the electric potential due to a tiny dipole whose dipole moment is 4.8 x 1030 C.m at a point 4.1 x 109 m away if this point is (a)
More informationCapacitance, Resistance, DC Circuits
This test covers capacitance, electrical current, resistance, emf, electrical power, Ohm s Law, Kirchhoff s Rules, and RC Circuits, with some problems requiring a knowledge of basic calculus. Part I. Multiple
More informationAP2 Electrostatics. Three point charges are located at the corners of a right triangle as shown, where q 1. are each 1 cm from q 3.
Three point charges are located at the corners of a right triangle as shown, where q 1 = q 2 = 3 µc and q 3 = 4 µc. If q 1 and q 2 are each 1 cm from q 3, what is the magnitude of the net force on q 3?
More informationExam 1 Practice Problems Solutions
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8 Spring 13 Exam 1 Practice Problems Solutions Part I: Short Questions and Concept Questions Problem 1: Spark Plug Pictured at right is a typical
More informationChapter 25: Capacitance
Chapter 25: Capacitance Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone. Albert Einstein 25.1 Introduction Whenever
More informationMASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics. 8.02 Spring 2013 Conflict Exam Two Solutions
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 802 Spring 2013 Conflict Exam Two Solutions Problem 1 (25 points): answers without work shown will not be given any credit A uniformly charged
More informationChapter 22: Electric Flux and Gauss s Law
22.1 ntroduction We have seen in chapter 21 that determining the electric field of a continuous charge distribution can become very complicated for some charge distributions. t would be desirable if we
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If the voltage at a point in space is zero, then the electric field must be A) zero. B) positive.
More informationCoefficient of Potential and Capacitance
Coefficient of Potential and Capacitance Lecture 12: Electromagnetic Theory Professor D. K. Ghosh, Physics Department, I.I.T., Bombay We know that inside a conductor there is no electric field and that
More informationExam 2 Practice Problems Part 1 Solutions
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Exam Practice Problems Part 1 Solutions Problem 1 Electric Field and Charge Distributions from Electric Potential An electric potential V ( z
More informationChapter 17: Electric Potential
hapter 17: Electric Potential Electric Potential Energy Electric Potential How are the Efield and Electric Potential related? Motion of Point harges in an Efield apacitors Dielectrics 1 Electric Potential
More informationPhysics II Exam 2 Review
Physics II Exam 2 Review Christopher Lane 1,2 Justin Lucas 1,3 Julia Bielaski 1,2 1 Department Physics, Clarkson University 2 Department Mathematics, Clarkson University 3 Department Electrical and Computer
More information( )( 10!12 ( 0.01) 2 2 = 624 ( ) Exam 1 Solutions. Phy 2049 Fall 2011
Phy 49 Fall 11 Solutions 1. Three charges form an equilateral triangle of side length d = 1 cm. The top charge is q =  4 μc, while the bottom two are q1 = q = +1 μc. What is the magnitude of the net force
More informationQ24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b
Q24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to 2Q, while keeping the conductors in the same positions.
More informationLast Name: First Name: Physics 102 Spring 2006: Exam #2 MultipleChoice Questions 1. A charged particle, q, is moving with speed v perpendicular to a uniform magnetic field. A second identical charged
More informationExercises on Voltage, Capacitance and Circuits. A d = (8.85 10 12 ) π(0.05)2 = 6.95 10 11 F
Exercises on Voltage, Capacitance and Circuits Exercise 1.1 Instead of buying a capacitor, you decide to make one. Your capacitor consists of two circular metal plates, each with a radius of 5 cm. The
More informationChapter 26. Capacitance and Dielectrics
Chapter 26 Capacitance and Dielectrics Capacitors Capacitors are devices that store electric charge Examples where capacitors are used: radio receivers filters in power supplies energystoring devices
More informationHW7 Solutions Notice numbers may change randomly in your assignments and you may have to recalculate solutions for your specific case.
HW7 Solutions Notice numbers may change randomly in your assignments and you may have to recalculate solutions for your specific case. Tipler 24.P.021 (a) Find the energy stored in a 20.00 nf capacitor
More informationChapter 22: The Electric Field. Read Chapter 22 Do Ch. 22 Questions 3, 5, 7, 9 Do Ch. 22 Problems 5, 19, 24
Chapter : The Electric Field Read Chapter Do Ch. Questions 3, 5, 7, 9 Do Ch. Problems 5, 19, 4 The Electric Field Replaces actionatadistance Instead of Q 1 exerting a force directly on Q at a distance,
More informationPhysics 9 Summer 2010 Midterm Solutions
Physics 9 Summer 010 Midterm s For the midterm, you may use one sheet of notes with whatever you want to put on it, front and back Please sit every other seat, and please don t cheat! If something isn
More informationELECTRIC FIELD LINES AND EQUIPOTENTIAL SURFACES
ELECTRIC FIELD LINES AND EQUIPOTENTIAL SURFACES The purpose of this lab session is to experimentally investigate the relation between electric field lines of force and equipotential surfaces in two dimensions.
More informationChapter 18. Electric Forces and Electric Fields
My lecture slides may be found on my website at http://www.physics.ohiostate.edu/~humanic/  Chapter 18 Electric Forces and Electric Fields
More informationElectric Forces & Fields, Gauss s Law, Potential
This test covers Coulomb s Law, electric fields, Gauss s Law, electric potential energy, and electric potential, with some problems requiring a knowledge of basic calculus. Part I. Multiple Choice +q +2q
More informationThe Electric Force. From mechanics, the relationship for the gravitational force on an object is: m is the mass of the particle of interest,
. The Electric Force Concepts and Principles The Gravitational Analogy In introducing the concept of the electric field, I tried to illustrate it by drawing an analogy with the gravitational field, g.
More informationphysics 111N electric potential and capacitance
physics 111N electric potential and capacitance electric potential energy consider a uniform electric field (e.g. from parallel plates) note the analogy to gravitational force near the surface of the Earth
More informationPhysics 210 Q ( PHYSICS210BRIDGE ) My Courses Course Settings
1 of 16 9/7/2012 1:10 PM Logged in as Julie Alexander, Instructor Help Log Out Physics 210 Q1 2012 ( PHYSICS210BRIDGE ) My Courses Course Settings Course Home Assignments Roster Gradebook Item Library
More informationCHAPTER 24 GAUSS S LAW
CHAPTER 4 GAUSS S LAW 4. The net charge shown in Fig. 440 is Q. Identify each of the charges A, B, C shown. A B C FIGURE 440 4. From the direction of the lines of force (away from positive and toward
More informationChapter 13. Gravitation
Chapter 13 Gravitation 13.2 Newton s Law of Gravitation In vector notation: Here m 1 and m 2 are the masses of the particles, r is the distance between them, and G is the gravitational constant. G = 6.67
More informationElectromagnetism Laws and Equations
Electromagnetism Laws and Equations Andrew McHutchon Michaelmas 203 Contents Electrostatics. Electric E and Dfields............................................. Electrostatic Force............................................2
More informationPHYS2020: General Physics II Course Lecture Notes Section II
PHYS2020: General Physics II Course Lecture Notes Section II Dr. Donald G. Luttermoser East Tennessee State University Edition 4.0 Abstract These class notes are designed for use of the instructor and
More informationA satellite of mass 5.00x10² kg is in a circular orbit of radius 2r around Earth. Then it is moved to a circular orbit radius of 3r.
Supplemental Questions A satellite of mass 5.00x10² kg is in a circular orbit of radius 2r around Earth. Then it is moved to a circular orbit radius of 3r. (a) Determine the satellite s GPE in orbit. (b)
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 informationPhys222 Winter 2012 Quiz 4 Chapters 2931. Name
Name If you think that no correct answer is provided, give your answer, state your reasoning briefly; append additional sheet of paper if necessary. 1. A particle (q = 5.0 nc, m = 3.0 µg) moves in a region
More information1 of 7 3/23/2010 2:45 PM
1 of 7 3/23/2010 2:45 PM Chapter 30 Homework Due: 8:00am on Tuesday, March 23, 2010 Note: To understand how points are awarded, read your instructor's Grading Policy. [Return to Standard Assignment View]
More informationPhysics 2212 GH Quiz #4 Solutions Spring 2015
Physics 1 GH Quiz #4 Solutions Spring 15 Fundamental Charge e = 1.6 1 19 C Mass of an Electron m e = 9.19 1 31 kg Coulomb constant K = 8.988 1 9 N m /C Vacuum Permittivity ϵ = 8.854 1 1 C /N m Earth s
More informationLesson 6 Capacitors and Capacitance Lawrence B. Rees 2007. You may make a single copy of this document for personal use without written permission.
Lesson 6 apacitors and apacitance Lawrence B. Rees 7. You may make a single copy of this document for personal use without written permission. 6. Introduction In 745 Pieter van Musschenbroek, while trying
More informationPH 212 07312015 Physics 212 Exam3 Solution NAME: Write down your name also on the back of the package of sheets you turn in.
PH 1 73115 Physics 1 Exam3 Solution NAME: Write down your name also on the back of the package of sheets you turn in. SIGNATURE and ID: Return this hard copy exam together with your other answer sheets.
More informationCET Moving Charges & Magnetism
CET 2014 Moving Charges & Magnetism 1. When a charged particle moves perpendicular to the direction of uniform magnetic field its a) energy changes. b) momentum changes. c) both energy and momentum
More informationElectrostaticsE Field
1. Which diagram represents the electric field lines between two small electrically charged spheres? 2. Which graph best represents the relationship between the magnitude of the electric field strength,
More informationReview Questions PHYS 2426 Exam 2
Review Questions PHYS 2426 Exam 2 1. If 4.7 x 10 16 electrons pass a particular point in a wire every second, what is the current in the wire? A) 4.7 ma B) 7.5 A C) 2.9 A D) 7.5 ma E) 0.29 A Ans: D 2.
More informationGravitational Fields: Review
Electric Fields Review of gravitational fields Electric field vector Electric fields for various charge configurations Field strengths for point charges and uniform fields Work done by fields & change
More informationMagnetism. d. gives the direction of the force on a charge moving in a magnetic field. b. results in negative charges moving. clockwise.
Magnetism 1. An electron which moves with a speed of 3.0 10 4 m/s parallel to a uniform magnetic field of 0.40 T experiences a force of what magnitude? (e = 1.6 10 19 C) a. 4.8 10 14 N c. 2.2 10 24 N b.
More informationFall 12 PHY 122 Homework Solutions #8
Fall 12 PHY 122 Homework Solutions #8 Chapter 27 Problem 22 An electron moves with velocity v= (7.0i  6.0j)10 4 m/s in a magnetic field B= (0.80i + 0.60j)T. Determine the magnitude and direction of the
More informationConceptual: 1, 3, 5, 6, 8, 16, 18, 19. Problems: 4, 6, 8, 11, 16, 20, 23, 27, 34, 41, 45, 56, 60, 65. Conceptual Questions
Conceptual: 1, 3, 5, 6, 8, 16, 18, 19 Problems: 4, 6, 8, 11, 16, 20, 23, 27, 34, 41, 45, 56, 60, 65 Conceptual Questions 1. The magnetic field cannot be described as the magnetic force per unit charge
More informationCLASS TEST GRADE 11. PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism
CLASS TEST GRADE 11 PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism MARKS: 45 TIME: 1 hour INSTRUCTIONS AND INFORMATION 1. Answer ALL the questions. 2. You may use nonprogrammable calculators.
More informationCapacitors Lab. In order to investigate electric fields you will need the following equipment. Homemade parallel capacitor with wax paper in between
Capacitors Lab 1 Equipment In order to investigate electric fields you will need the following equipment Homemade parallel capacitor with wax paper in between DC voltage supply Electrometer Variable capacitor
More informationProfs. A. Petkova, A. Rinzler, S. Hershfield. Exam 2 Solution
PHY2049 Fall 2009 Profs. A. Petkova, A. Rinzler, S. Hershfield Exam 2 Solution 1. Three capacitor networks labeled A, B & C are shown in the figure with the individual capacitor values labeled (all units
More informationElectrical Energy, Potential and Capacitance. AP Physics B
Electrical Energy, Potential and Capacitance AP Physics B Electric Fields and WORK In order to bring two like charges near each other work must be done. In order to separate two opposite charges, work
More informationProblem 4.48 Solution:
Problem 4.48 With reference to Fig. 419, find E 1 if E 2 = ˆx3 ŷ2+ẑ2 (V/m), ε 1 = 2ε 0, ε 2 = 18ε 0, and the boundary has a surface charge density ρ s = 3.54 10 11 (C/m 2 ). What angle does E 2 make with
More informationCandidate Number. General Certificate of Education Advanced Level Examination June 2010
entre Number andidate Number Surname Other Names andidate Signature General ertificate of Education dvanced Level Examination June 1 Physics PHY4/1 Unit 4 Fields and Further Mechanics Section Friday 18
More informationv 2 = v a(x x 0 ) and v = 0 a = v2 0 2d = K md F net = qe = ma E = ma e = K ed = V/m dq = λ ds de r = de cosθ = 1 λ ds = r dθ E r =
Physics 11 Honors Final Exam Spring 003 Name: Section: Closed book exam. Only one 8.5 11 formula sheet (front and back side) can be used. Calculators are allowed. Use the scantron forms (pencil only!)
More informationAP2 Magnetism. (c) Explain why the magnetic field does no work on the particle as it moves in its circular path.
A charged particle is projected from point P with velocity v at a right angle to a uniform magnetic field directed out of the plane of the page as shown. The particle moves along a circle of radius R.
More informationAs customary, choice (a) is the correct answer in all the following problems.
PHY2049 Summer 2012 Instructor: Francisco Rojas Exam 1 As customary, choice (a) is the correct answer in all the following problems. Problem 1 A uniformly charge (thin) nonconucting ro is locate on the
More information1) Magnetic field lines come out of the south pole of a magnet and enter at the north pole.
Exam Name 1) Magnetic field lines come out of the south pole of a magnet and enter at the north pole. 2) Which of the following statements is correct? A) Earth's north pole is magnetic north. B) The north
More informationUNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 111.6 MIDTERM TEST #4 March 15, 2007 Time: 90 minutes NAME: (Last) Please Print (Given) STUDENT NO.: LECTURE SECTION (please
More informationChapter 3. Gauss s Law
3 3 30 Chapter 3 Gauss s Law 3.1 Electric Flux... 32 3.2 Gauss s Law (see also Gauss s Law Simulation in Section 3.10)... 34 Example 3.1: Infinitely Long Rod of Uniform Charge Density... 39 Example
More informationPhysics 210 Q1 2012 ( PHYSICS210BRIDGE ) My Courses Course Settings
1 of 11 9/7/2012 1:06 PM Logged in as Julie Alexander, Instructor Help Log Out Physics 210 Q1 2012 ( PHYSICS210BRIDGE ) My Courses Course Settings Course Home Assignments Roster Gradebook Item Library
More informationCapacitance and Dielectrics. Physics 231 Lecture 41
apacitance and Dielectrics Physics 3 Lecture 4 apacitors Device for storing electrical energy which can then be released in a controlled manner onsists of two conductors, carrying charges of q and q,
More informationCandidate Number. General Certificate of Education Advanced Level Examination June 2014
entre Number andidate Number Surname Other Names andidate Signature General ertificate of Education dvanced Level Examination June 214 Physics PHY4/1 Unit 4 Fields and Further Mechanics Section Wednesday
More informationPhysics 25 Exam 3 November 3, 2009
1. A long, straight wire carries a current I. If the magnetic field at a distance d from the wire has magnitude B, what would be the the magnitude of the magnetic field at a distance d/3 from the wire,
More informationCandidate Number. General Certificate of Education Advanced Level Examination June 2012
entre Number andidate Number Surname Other Names andidate Signature General ertificate of Education dvanced Level Examination June 212 Physics PHY4/1 Unit 4 Fields and Further Mechanics Section Monday
More informationElectric Field Mapping Lab 3. Precautions
HB 092507 Electric Field Mapping Lab 3 1 Electric Field Mapping Lab 3 Equipment mapping board, Uprobe, resistive boards, templates, dc voltmeter (431B), 4 long leads, 16 V dc for wall strip Reading
More informationMeasurement of Capacitance
Measurement of Capacitance PreLab Questions Page Name: Class: Roster Number: Instructor:. A capacitor is used to store. 2. What is the SI unit for capacitance? 3. A capacitor basically consists of two
More informationPhysics 30 Worksheet #10 : Magnetism From Electricity
Physics 30 Worksheet #10 : Magnetism From Electricity 1. Draw the magnetic field surrounding the wire showing electron current below. x 2. Draw the magnetic field surrounding the wire showing electron
More information1. Units of a magnetic field might be: A. C m/s B. C s/m C. C/kg D. kg/c s E. N/C m ans: D
Chapter 28: MAGNETIC FIELDS 1 Units of a magnetic field might be: A C m/s B C s/m C C/kg D kg/c s E N/C m 2 In the formula F = q v B: A F must be perpendicular to v but not necessarily to B B F must be
More informationElectromagnetism Extra Study Questions Short Answer
Electromagnetism Extra Study Questions Short Answer 1. The electrostatic force between two small charged objects is 5.0 10 5 N. What effect would each of the following changes have on the magnitude of
More informationObjectives. Capacitors 262 CHAPTER 5 ENERGY
Objectives Describe a capacitor. Explain how a capacitor stores energy. Define capacitance. Calculate the electrical energy stored in a capacitor. Describe an inductor. Explain how an inductor stores energy.
More informationEpisode 126: Capacitance and the equation C =Q/V
Episode 126: Capacitance and the equation C =Q/V Having established that there is charge on each capacitor plate, the next stage is to establish the relationship between charge and potential difference
More informationPhysics 126 Practice Exam #3 Professor Siegel
Physics 126 Practice Exam #3 Professor Siegel Name: Lab Day: 1. Which one of the following statements concerning the magnetic force on a charged particle in a magnetic field is true? A) The magnetic force
More information1. The diagram below represents magnetic lines of force within a region of space.
1. The diagram below represents magnetic lines of force within a region of space. 4. In which diagram below is the magnetic flux density at point P greatest? (1) (3) (2) (4) The magnetic field is strongest
More informationChapter 23 Electric Potential. Copyright 2009 Pearson Education, Inc.
Chapter 23 Electric Potential 231 Electrostatic Potential Energy and Potential Difference The electrostatic force is conservative potential energy can be defined. Change in electric potential energy is
More informationVersion A Page 1. 1. The diagram shows two bowling balls, A and B, each having a mass of 7.00 kilograms, placed 2.00 meters apart.
Physics Unit Exam, Kinematics 1. The diagram shows two bowling balls, A and B, each having a mass of 7.00 kilograms, placed 2.00 meters apart. What is the magnitude of the gravitational force exerted by
More informationChapter 4. Electrostatic Fields in Matter
Chapter 4. Electrostatic Fields in Matter 4.1. Polarization A neutral atom, placed in an external electric field, will experience no net force. However, even though the atom as a whole is neutral, the
More informationStoring And Releasing Charge In A Circuit
Storing And Releasing Charge In A Circuit Topic The characteristics of capacitors Introduction A capacitor is a device that can retain and release an electric charge, and is used in many circuits. There
More informationTEACHER S CLUB EXAMS GRADE 11. PHYSICAL SCIENCES: PHYSICS Paper 1
TEACHER S CLUB EXAMS GRADE 11 PHYSICAL SCIENCES: PHYSICS Paper 1 MARKS: 150 TIME: 3 hours INSTRUCTIONS AND INFORMATION 1. This question paper consists of 12 pages, two data sheets and a sheet of graph
More informationProblem 1 (25 points)
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2012 Exam Three Solutions Problem 1 (25 points) Question 1 (5 points) Consider two circular rings of radius R, each perpendicular
More informationFebruary 6. Physics 272. Spring 2014 Prof. Philip von Doetinchem
Physics 272 February 6 Spring 2014 http://www.phys.hawaii.edu/~philipvd/pvd_14_spring_272_uhm.html Prof. Philip von Doetinchem philipvd@hawaii.edu Phys272  Spring 14  von Doetinchem  216 Summary Charges
More informationPHYS 222 Spring 2012 Final Exam. Closed books, notes, etc. No electronic device except a calculator.
PHYS 222 Spring 2012 Final Exam Closed books, notes, etc. No electronic device except a calculator. NAME: (all questions with equal weight) 1. If the distance between two point charges is tripled, the
More information104 Practice Exam 23/21/02
104 Practice Exam 23/21/02 1. Two electrons are located in a region of space where the magnetic field is zero. Electron A is at rest; and electron B is moving westward with a constant velocity. A nonzero
More informationCapacitors and a Galvanometer
Capacitors and a Galvanometer Object To investigate, understand and verify how capacitances are added together both in series and parallel and to consider the leakage of a capacitor. Also to employ a galvanometer
More informationEE301 Lesson 14 Reading: 10.110.4, 10.1110.12, 11.111.4 and 11.1111.13
CAPACITORS AND INDUCTORS Learning Objectives EE301 Lesson 14 a. Define capacitance and state its symbol and unit of measurement. b. Predict the capacitance of a parallel plate capacitor. c. Analyze how
More informationSample Questions for the AP Physics 1 Exam
Sample Questions for the AP Physics 1 Exam Sample Questions for the AP Physics 1 Exam Multiplechoice Questions Note: To simplify calculations, you may use g 5 10 m/s 2 in all problems. Directions: Each
More informationPhysics 121 Sample Common Exam 3 NOTE: ANSWERS ARE ON PAGE 6. Instructions: 1. In the formula F = qvxb:
Physics 121 Sample Common Exam 3 NOTE: ANSWERS ARE ON PAGE 6 Signature Name (Print): 4 Digit ID: Section: Instructions: Answer all questions 24 multiple choice questions. You may need to do some calculation.
More informationExperiment 9 ~ RC Circuits
Experiment 9 ~ RC Circuits Objective: This experiment will introduce you to the properties of circuits that contain both resistors AND capacitors. Equipment: 18 volt power supply, two capacitors (8 µf
More informationPhysics 9 Fall 2009 Homework 2  Solutions
Physics 9 Fall 009 Homework  s 1. Chapter 7  Exercise 5. An electric dipole is formed from ±1.0 nc charges spread.0 mm apart. The dipole is at the origin, oriented along the y axis. What is the electric
More informationQ28.1 A positive point charge is moving to the right. The magnetic field that the point charge produces at point P (see diagram below) P
Q28.1 A positive point charge is moving to the right. The magnetic field that the point charge produces at point P (see diagram below) P r + v r A. points in the same direction as v. B. points from point
More informationRotation. Moment of inertia of a rotating body: w I = r 2 dm
Rotation Moment of inertia of a rotating body: w I = r 2 dm Usually reasonably easy to calculate when Body has symmetries Rotation axis goes through Center of mass Exams: All moment of inertia will be
More informationMETHODS FOR THE CALIBRATION OF ELECTROSTATIC MEASURING INSTRUMENTS
METHODS FOR THE CALIBRATION OF ELECTROSTATIC MEASURING INSTRUMENTS Contents Foreword 
More informationModule 1 : A Crash Course in Vectors Lecture 2 : Coordinate Systems
Module 1 : A Crash Course in Vectors Lecture 2 : Coordinate Systems Objectives In this lecture you will learn the following Define different coordinate systems like spherical polar and cylindrical coordinates
More informationCapacitance. IV. Capacitance. 1a. Leyden Jar. Battery of Leyden Jars. A. The Electric Condenser. B. Dielectrics. C. Energy in Electric Field
IV. apacitance apacitance A. The Electric ondenser B. Dielectrics Revised: Feb5. Energy in Electric Field Sections.79 and 3.8 in book A. The Electric ondenser 3. History of the apacitor 4 ) History of
More informationThe Electric Field. Electric Charge, Electric Field and a Goofy Analogy
. The Electric Field Concepts and Principles Electric Charge, Electric Field and a Goofy Analogy We all know that electrons and protons have electric charge. But what is electric charge and what does it
More informationChapter 19 Magnetic Forces and Fields
Chapter 19 Magnetic Forces and Fields Student: 3. The magnetism of the Earth acts approximately as if it originates from a huge bar magnet within the Earth. Which of the following statements are true?
More informationElectric Forces and Fields. Charge Coulomb's Law Electric Fields Conductors & Insulators Parallel plates Dipoles
Electric Forces and Fields Charge Coulomb's Law Electric Fields Conductors & Insulators Parallel plates Dipoles 1 Friction causes these effects Pollen sticks to bees Dust sticks to TV Static cling of clothes
More information