题目内容
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提问人:网友hzb2925
发布时间:2022-01-07
[主观题]
The net magnetic force on a current loop in a uniform field is zero.
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The current in the long, straight wire isand the wire lies in the plane of the rectangular loop, which carries the current. If we know the distance from the long wire to the loop is, the edge lengths of the rectangular loops areand. Find the magnitude of the net force exerted on the loop by the magnetic field created by the wire.
A、
B、
C、
D、
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