A current flows west through a power line. Find the directions of the magnetic field above and

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A current flows west through a power line. Find the directions of the magnetic field above and below the power line; ignore the earth€™s magnetic field.
Figure 6-51 shows a current-carrying wire and a compass. In which direction will the compass needle point?

Compass Current

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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