A compass needle initially points 197o e of n due to the, Physics

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A compass needle initially points 197o e of n due to the

A compass needle initially points 19.7o E of N due to the Earth's magnetic field. However, when current flows through a vertical wire that sits 6.90cm to the west of the compass, the needle instead points 50.0o E of N. What is the magnitude of the current in the wire? Assume that the Earth's field is 4.90×10-5T and horizontal.

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Physics: A compass needle initially points 197o e of n due to the

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