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(Solved): A compass needle points 20 degrees east of north. When placed 10 cm to the east of a vertical wire, ...



A compass needle points 20 degrees east of north. When placed 10 cm to the east of a vertical wire, it points 50 degrees east of north. What is the magnitude and direction (up or down) of the wire's current? The earth's field is horizontal, south to north, and

5\times 10^(5)

Tesla.



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