At a certain location, Earth's magnetic field of 44 µT is horizontal and directed due north. Suppose the net field is zero exactly 11 cm above a long, straight, horizontal wire that carries a constant current. What is (a) the magnitude of the current (in A) and (b) the angle between the current direction and due north?
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At a certain location, Earth's magnetic field of 44 µT is horizontal and directed due north. Suppose...
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