1. The force between two long parallel conductors is 15 kg/meter. The conductor spacing is 10 cm. If one conductor carries twice the current of the other, calculate the current in each conductor.? 2.A solenoid 0.2m long has 1000 turns of wire and is oriented with its axis parallel to the earth's magnetic field at a place where the latter is 25micro tesla. What should be the current in the solenoid in order that the field exactly cancels the earth's field inside the solenoid.?

1. The force between two long parallel conductors is 15 kg/meter. The conductor spacing is 10 cm. If one conductor carries twice the current of the other, calculate the current in each conductor.? 2.A solenoid 0.2m long has 1000 turns of wire and is oriented with its axis parallel to the earth's magnetic field at a place where the latter is 25micro tesla. What should be the current in the solenoid in order that the field exactly cancels the earth's field inside the solenoid.?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 83A

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