1 Introduction 2 Motion Along A Line 3 Motion In A Plane 4 Force And Newton's Laws Of Motion 5 Circular Motion 6 Conservation Of Energy 7 Linear Momentum 8 Torque And Angular Momentum 9 Fluids 10 Elasticity And Oscillations 11 Waves 12 Sound 13 Temperature And Ideal Gas 14 Heat 15 Thermodynamics 16 Electric Forces And Fields 17 Electric Potential 18 Electric Current And Circuits 19 Magnetic Forces And Fields 20 Electromagnetic Induction 21 Alternating Current 22 Electromagnetic Waves 23 Reflection And Refraction Of Light 24 Optical Instruments 25 Interference And Diffraction 26 Relativity 27 Early Quantum Physics And The Photon 28 Quantum Physics 29 Nuclear Physics 30 Particle Physics expand_more
19.1 Magnetic Fields 19.2 Magnetic Force On A Point Charge 19.3 Charged Particle Moving Perpendicularly To A Uniform Magnetic Field 19.4 Motion Of A Charged Particle In A Uniform Magnetic Field: General 19.5 A Charged Particle In Crossed E And B Fields 19.6 Magnetic Force On A Current-carrying Wire 19.7 Torque On A Current Loop 19.8 Magnetic Field Due To An Electric Current 19.9 Ampere's Law 19.10 Magnetic Materials Chapter Questions expand_more
Problem 1CQ Problem 2CQ Problem 3CQ Problem 4CQ Problem 5CQ Problem 6CQ Problem 7CQ Problem 8CQ Problem 9CQ Problem 10CQ Problem 11CQ Problem 12CQ Problem 13CQ Problem 14CQ Problem 15CQ Problem 16CQ Problem 17CQ Problem 18CQ Problem 19CQ Problem 20CQ Problem 21CQ Problem 22CQ Problem 23CQ Problem 1MCQ Problem 2MCQ Problem 3MCQ: Multiple-Choice Questions 1-4. In the figure, four point charges move in the directions indicated in... Problem 4MCQ Problem 5MCQ Problem 6MCQ Problem 7MCQ Problem 8MCQ Problem 9MCQ: Multiple-Choice Questions 6-9. A wire carries current as shown in the figure. Charged particles... Problem 10MCQ Problem 11MCQ: 11. The magnetic forces that two parallel wires with unequal currents flowing in opposite directions... Problem 12MCQ Problem 1P: 1. At which point in the diagram is the magnetic field magnitude (a) the smallest and (b) the... Problem 2P: 2. Draw vector arrows to indicate the direction and relative magnitude of the magnetic field at each... Problem 3P: Problems 3-6. Sketch some magnetic field lines for two identical bar magnets in the given... Problem 4P Problem 5P Problem 6P: Problems 3–6. Sketch some magnetic field lines for two identical bar magnets in the given... Problem 7P: 7. Find the magnetic force exerted on an electron moving vertically upward at a speed of 2.0 × 107... Problem 8P: 8. Find the magnetic force exerted on a proton moving east at a speed of 6.0 × 106 m/s by a... Problem 9P: 9. A uniform magnetic field points north; its magnitude is 1.5 T. A proton with kinetic energy 8.0 ×... Problem 10P: 10. A uniform magnetic field points vertically upward; its magnitude is 0.800 T. An electron with... Problem 11P: Problems 11-14. Several electrons move at speed 8.0 × 105 m/s in a uniform magnetic field with... Problem 12P: 12. Find the magnetic force on the electron at point a.
Problems 11-14
Problem 13P: 12. Find the magnetic force on the electron at point a.
Problems 11-14
13. Find the magnetic force... Problem 14P: Problems 11-14. Several electrons move at speed 8.0 × 105 m/s in a uniform magnetic field with... Problem 15P: 15. A magnet produces a 0.30 T field between its poles, directed to the east. A dust particle with... Problem 16P: 16. At a certain point on Earth’s surface in the southern hemisphere, the magnetic field has a... Problem 17P: 17. A cosmic ray muon with the same charge as an electron and a mass of 1.9 × 10−28 kg is moving... Problem 18P: 18. In a CRT. electrons moving at 1.8 × 107 m/s pass between the poles of an electromagnet where the... Problem 19P: 19. A positron (q = +e) moves at 5.0 × 107 m/s in a magnetic field of magnitude 0.47 T. The magnetic... Problem 20P: 20. ✦ An electron moves with speed 2.0 × 105 m/s in a 1.2 T uniform magnetic field. At one instant,... Problem 21P: 21. ✦ An electron moves with speed 2.0 × 105 m/s in a uniform magnetic field of 1.4 T, pointing... Problem 22P: 19.3 Charged Particle Moving Perpendicularly to a Uniform Magnetic Field
22. When two particles... Problem 23P: 23. Six protons move (at speed v) in magnetic fields (magnitude B) along circular paths. Rank them... Problem 24P: 24. An electron moves at speed 8.0 × 105 m/s in a plane perpendicular to a cyclotron’s magnetic... Problem 25P: 25. The magnetic field in a hospital’s cyclotron is 0.50 T. Find the magnitude of the magnetic force... Problem 26P: 26. The magnetic field in a cyclotron used in proton beam cancer therapy is 0.360 T. The dees have... Problem 27P: 27. The magnetic field in a cyclotron used to produce radioactive tracers is 0.50 T. What must be... Problem 28P: 28. A beam of α particles (helium nuclei) is used to treat a tumor located 10.0 cm inside a patient.... Problem 29P: 29. A singly charged ion of unknown mass moves in a circle of radius 12.5 cm in a magnetic field of... Problem 30P: 30. In one type of mass spectrometer, ions having the same velocity move through a uniform magnetic... Problem 31P: 31. Natural carbon consists of two different isotopes (excluding l4C. which is present in only trace... Problem 32P: 32. After being accelerated through a potential difference of 5.0 kV, a singly charged carbon ion... Problem 33P: 33. A sample containing carbon (atomic mass 12 u), oxygen (16 u), and an unknown element is placed... Problem 34P Problem 35P: 35. Show that the time for one revolution of a charged particle moving perpendicular to a uniform... Problem 36P: 36. Crossed electric and magnetic fields are established over a certain region. The magnetic field... Problem 37P: 37. A current I = 40.0 A flows through a strip of metal. An electromagnet is switched on so that... Problem 38P: 38. In Problem 37, if the width of the strip is 3.5 cm, the magnetic field is 0.43 T, and the Hall... Problem 39P: 39. In Problem 37, the width of the strip is 3.5 cm. the magnetic field is 0.43 T. the Hall voltage... Problem 40P: 40. The strip in the diagram is used as a Hall probe to measure magnetic fields. (a) What happens if... Problem 41P: 41. A strip of copper 2.0 cm wide carries a current I = 30.0 A to the right. The strip is in a... Problem 42P Problem 43P: 43. An electromagnetic flowmeter is used to measure blood flow rates during surgery. Blood... Problem 44P: 44. A charged particle is accelerated from rest through a potential difference ΔV. The particle then... Problem 45P: 45. A straight wire segment of length 0.60 m carries a current of 18.0 A and is immersed in a... Problem 46P: 46. A straight wire segment of length 25 cm carries a current of 33.0 A and is immersed in a uniform... Problem 47P: 47. Parallel conducting tracks, separated by 2.0 cm, run north and south. There is a uniform... Problem 48P: 48. An electromagnetic rail gun can fire a projectile using a magnetic field and an electric... Problem 49P: 49. A straight, stiff wire of length 1.00 m and mass 25 g is suspended in a magnetic field B = 0.75... Problem 50P Problem 51P Problem 52P Problem 53P: 53. ✦ A straight wire is aligned east-west in a region where Earth’s magnetic field has magnitude... Problem 54P:
54. A straight wire is aligned north-south in a region where Earth’s magnetic field is directed... Problem 55P: 55. In each of six electric motors, a cylindrical coil with N turns and radius r is immersed in a... Problem 56P:
56. In an electric motor, a circular coil with 100 turns of radius 2.0 cm can rotate between the... Problem 57P: 57. In an electric motor, a coil with 100 turns of radius 2.0 cm can rotate between the poles of a... Problem 58P: 58. A square loop of wire of side 3.0 cm carries 3.0 A of current. A uniform magnetic field of... Problem 59P: 59. The intrinsic magnetic dipole moment of the electron has magnitude 9.3 × 10−24 A·m2. What is the... Problem 60P: 60. In a simple model, the electron in a hydrogen atom orbits the proton at a radius of 53 pm and at... Problem 61P: 61. A certain fixed length L of wire carries a current I. (a) Show that if the wire is formed into a... Problem 62P: 62. Use the following method to show that the torque on an irregularly shaped planar loop due to a... Problem 63P: 63. A square loop of wire with side 0.60 m carries a current of 9.0 A as shown in the figure. When... Problem 64P Problem 65P:
65. Estimate the magnetic field at distances of 1 μm, 1 mm, and 1 m produced by a current of 3 μA... Problem 66P Problem 67P: 67. Kieran measures the magnetic field of an electron beam. The beam strength is such that 1.40 ×... Problem 68P:
68. Two wires each carry 10.0 A of current (in opposite directions) and are 3.0 mm apart. Calculate... Problem 69P Problem 70P:
70. Point P is midway between two long, straight, parallel wires that run north-south in a... Problem 71P:
70. Point P is midway between two long, straight, parallel wires that run north-south in a... Problem 72P Problem 73P Problem 74P: 74. Two long straight wires carry the same amount of current in the directions indicated. The wires... Problem 75P: 75. In Problem 74, find the magnetic field at points C and D when d = 3.3 cm and I = 6.50... Problem 76P:
76. In Problem 74, find the magnetic field at points A and B when d = 6.75 cm and I = 57.0 mA.
Problem 77P: 77. A solenoid of length 0.256 m and radius 2.0 cm has 244 turns of wire. What is the magnitude of... Problem 78P: 78. Two long straight parallel wires separated by 8.0 cm carry currents of equal magnitude but... Problem 79P Problem 80P Problem 81P: 81. You are designing the main solenoid for an MRI machine. The solenoid should be 1.5 m long.... Problem 82P: 82. A solenoid has 4850 turns per meter and radius 3.3 cm. The magnetic field inside has magnitude... Problem 83P: 83. Find the magnetic field at the center of the square.
Problems 83-85
Problem 84P:
84. Find the magnetic field at point P, the midpoint of the top side of the square.
Problems... Problem 85P Problem 86P Problem 87P Problem 88P: 88. A number of wires carry currents into or out of the page as indicated in the figure, (a) Using... Problem 89P: 89. ✦ An infinitely long, thick cylindrical shell of inner radius a and outer radius b carries a... Problem 90P:
90. In this problem, use Ampère’s law to show that the magnetic field inside a long solenoid is B... Problem 91P Problem 92P Problem 93P Problem 94P Problem 95P Problem 96P Problem 97P Problem 98P Problem 99P Problem 100P Problem 101P Problem 102P Problem 103P Problem 104P Problem 105P Problem 106P: 106. Two conducting wires perpendicular to the page are shown in cross section as gray dots in the... Problem 107P Problem 108P Problem 109P Problem 110P: 110. A solenoid with 8500 turns per meter has radius 65 cm. The current in the solenoid is 25.0 A. A... Problem 111P Problem 112P Problem 113P Problem 114P Problem 115P Problem 116P Problem 117P Problem 118P Problem 119P Problem 120P Problem 121P Problem 122P Problem 123P Problem 124P Problem 125P format_list_bulleted