A small compass is held horizontally, the center of its needle a distance of 0.280 m directly
Question:
(a) Does the current in the wire flow toward or away from the earth's surface?
(b) What is the magnitude of the horizontal component of the earth's magnetic field at the location of the compass?
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Reasoning a The compass needle lines up with the net horizontal magnetic field B that is the vector sum of the magnetic fields B I the field at the lo...View the full answer
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