6. A power line carries a current of 95 A west along the tops of 8.5 m high poles. a. What is the magnitude and direction of the magnetic field produced by this current at the ground directly below? Direction: b. How does this compare with the Earth's magnetic field of about 0.5 x 104 T? (How many times stronger [weaker] is this magnetic field to the earth's magnetic field?) c. Where would the wire's magnetic field cancel the Earth's field?
6. A power line carries a current of 95 A west along the tops of 8.5 m high poles. a. What is the magnitude and direction of the magnetic field produced by this current at the ground directly below? Direction: b. How does this compare with the Earth's magnetic field of about 0.5 x 104 T? (How many times stronger [weaker] is this magnetic field to the earth's magnetic field?) c. Where would the wire's magnetic field cancel the Earth's field?
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 73A
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