Questions
A wire is sliding on two parallel conducting rails placed at a separation of 1 m as shown in figure. Magnetic field 2 T exists in a direction perpendicular to rails. What force is necessary to keep the wire moving with a constant velocity of I cm/sec?
detailed solution
Correct option is D
F=B2vl2R=4 x 10-2 x 1250=8 x 10-4 NTalk to our academic expert!
Similar Questions
A copper rod AB of length 2m is moving in a uniform magnetic field of 1.5 T with a velocity of 3 m/s. The induced potential difference between ends A and B is
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