College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 20, Problem 76GP
76. A long, straight wire containing a semicircular region of radius 0.95 m is placed in a uniform magnetic field of magnitude 2.20 T as shown in Figure 20.70. The wire carries a current of 4.0 A. (a) What is the net magnetic force acting on the two straight sections of the wire? (b) What magnetic field does the wire produce at the center of the hemisphere? (Hint: See “Frequently Asked Questions.”)
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College Physics (10th Edition)
Ch. 20 - If an electron beam in a cathode-ray tube travels...Ch. 20 - Why is it not a good idea to call magnetic field...Ch. 20 - If the magnetic force does no work on a charged...Ch. 20 - A permanent magnet can be used to pick up a string...Ch. 20 - Streams of charged particles emitted from the sun...Ch. 20 - A student once proposed to obtain an isolated...Ch. 20 - The magnetic force on a moving charged particle is...Ch. 20 - The text discusses the magnetic field of an...Ch. 20 - Two parallel conductors carrying current in the...Ch. 20 - Household wires (such as lamp cords) often carry...
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An electron at point A in Figure 20.59 has a...Ch. 20 - Prob. 19PCh. 20 - A 3.25 g bullet picks up an electric charge of...Ch. 20 - An electron travels into a 0.3 magnetic field...Ch. 20 - Prob. 22PCh. 20 - Singly ionized (one electron removed) atoms are...Ch. 20 - Ancient meat eating. The amount of meat in...Ch. 20 - A straight vertical wire carries a current of 1.20...Ch. 20 - Magnetic force on a lightning bolt. Currents...Ch. 20 - A horizontal rod 0.200 m long carries a current...Ch. 20 - A straight 2.5 m wire carries a typical household...Ch. 20 - A magnetic field is used to suspend a wire of mass...Ch. 20 - A rectangular 10.0 cm by 20.0 cm circuit carrying...Ch. 20 - A long wire carrying a 6.00 A current reverses...Ch. 20 - As long wire carrying 4.50 A or current makes two...Ch. 20 - The 20.0 cm by 35.0 cm rectangular circuit shown...Ch. 20 - Prob. 34PCh. 20 - A circular coil of wire 8.6 cm in diameter has 15...Ch. 20 - A coil having 165 turns and a radius of 1.2 cm...Ch. 20 - A circular coil of 50 loops and diameter 20.0 cm...Ch. 20 - You want to produce a magnetic field of magnitude...Ch. 20 - Household magnetic fields. Home circuit breakers...Ch. 20 - (a) How large a current would a very long,...Ch. 20 - Currents in the heart. The body contains many...Ch. 20 - Magnetic sensitivity of electric fish. Electric...Ch. 20 - A jumper cable is used to start a car that has a...Ch. 20 - If the magnetic field due to a long, straight,...Ch. 20 - A long, straight wire carries a current l0 and...Ch. 20 - EMF. Currents in dc transmission lines can be 100...Ch. 20 - A long, straight telephone cable contains six...Ch. 20 - Two insulated wires perpendicular to each other in...Ch. 20 - Two long straight parallel wires are 10.0 cm apart...Ch. 20 - Set Up: B=0l2r The direction of BB is given by the...Ch. 20 - Two high-current transmission lines carry currents...Ch. 20 - Prob. 52PCh. 20 - Prob. 53PCh. 20 - An electric bus operates by drawing current from...Ch. 20 - A circular metal loop is 22 cm in diameter, (a)...Ch. 20 - A closely wound circular coil with a diameter of...Ch. 20 - A closely wound circular coil has a radius of 6.00...Ch. 20 - BIO Currents in the brain. The magnetic field...Ch. 20 - A closely wound, circular coil with radius 2.40 cm...Ch. 20 - Two circular concentric loops of wire lie on a...Ch. 20 - Calculate the magnitude and direction of the...Ch. 20 - A solenoid contains 750 coils of very thin wire...Ch. 20 - As a new electrical technician, you are designing...Ch. 20 - A solenoid is designed to produce a 0.0279 T...Ch. 20 - As shown in Figure 20.67, a single circular...Ch. 20 - A solenoid that is 35 cm long and contains 450...Ch. 20 - You have 25 m of wire, which you want to use to...Ch. 20 - A toroidal solenoid (see Figure 20.42) has inner...Ch. 20 - Three long, straight electrical cables, running...Ch. 20 - A long, straight, cylindrical wire of radius R...Ch. 20 - Platinum is a paramagnetic metal having a relative...Ch. 20 - When a certain paramagnetic material is placed in...Ch. 20 - A 150 g ball containing 4.00 108 excess electrons...Ch. 20 - Magnetic balance. The circuit shown in Figure...Ch. 20 - A thin 50.0-cm-long metal bar with mass 750 g...Ch. 20 - 76. A long, straight wire containing a...Ch. 20 - A singly charged an of Li (on isotope of lithium...Ch. 20 - An insulated circular ring of diameter 6.50 cm...Ch. 20 - The effect of transmission lines. Two hikers are...Ch. 20 - DATA A current-carrying wife of length 0.15 m is...Ch. 20 - Two very long, straight wires carry currents as...Ch. 20 - Prob. 82GPCh. 20 - Prob. 83GPCh. 20 - Prob. 84GPCh. 20 - A long wire carrying 6.50 A of current makes two...Ch. 20 - BIO Magnetic fields and MRI. Magnetic resonance...Ch. 20 - Prob. 87PPCh. 20 - The large magnetic fields used in MRI can produce...Ch. 20 - BIO Studying magnetic bacteria. Some types of...Ch. 20 - To use a larger sample of bacteria, the...Ch. 20 - BIO Studying magnetic bacteria. Some types of...
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Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY