How much current must pass through a horizontal power transmission cable in order for the magnetic field

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How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 11 m directly below it to be equal to the Earth's magnetic field, which is approximately 5.0 × 10-5 T?

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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Question Posted: Aug 31, 2017 12:08 PM

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How much current must pass through a horizontal power transmission cable in order for the magnetic field

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