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Solutions to Problem set on Chapter 29

# Solutions to Problem set on Chapter 29 - Problems on...

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1. A long straight wire lies along the z-axis and carries a current of 4.00A in the +z-direction. Find the magnetic field (magnitude and direction) produced at the following points by a 0.500-mm segment of the wire centered at the origin: Problems on Chapter 29 a) x = 2.00m, y = 0, z = 0 b) x= 0, y = 2.00m, z = 0 c) x = 2.00 m, y = 2.00m, z = 0 d) x= 0, y = 0, z = 2.00m 2. Two parallel straight wires 10.0 cm apart carry currents in opposite directions. Current I 1 = 5.0 A is out of the page, and I 2 = 7.0 A is into the page. Determine the magnitude of the magnetic field halfway between the two wires. 3. The wire shown in the figure carries a current of 40 A. The circular part of the wire has a radius of 2 cm. Find the magnitude and direction of the magnetic field at P 4. a) In the situation shown in the figure find an expression for the force experienced by side MN of the rectangular loop, expressing your answer in terms of b) What is the torque on the rectangular loop? c) Find the net force on the long straight wire due to the current in the loop. [Assume that Newton’s action-reaction law is valid] 5. Textbook: Problem 48 (Page 787) 6. A solenoid has 9000 turns along its length and carries a current of 4.2 A. An electron is shot into one end of this solenoid with a speed of 2.0 x 10 4 m/s at a direction of 30° with respect to the central axis of the solenoid. Assuming a uniform magnetic field inside the solenoid, determine how many revolutions the electron will make along its helical path within the solenoid by the time it emerges from the other end of the solenoid.

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Solutions to Problem set on Chapter 29 - Problems on...

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