Ahigh-voltage power line carries a current of 110 Aat a
Chapter 22, Problem 36(choose chapter or problem)
Ahigh-voltage power line carries a current of 110 Aat a location where the Earths magnetic eld has a magnitude of 0.59 G and points to the north, 72 below the horizontal. Find the direction and magnitude of the magnetic force exerted on a 250-m length of wire if the current in the wire ows (a) horizontally toward the east or (b) horizontally toward the south.
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