A wire of length 1 m is moving at a speed of 
perpendicular to its length and a homogeneous magnetic field of 0.5 T. The ends of the wire are joined to a circuit of resistance 
. The rate at which work is being done to keep the wire moving at constant speed is
A
B
C
D
1 W
Text Solution
Verified by ExpertsThe correct answer is:
B
Rate of work 
But 
,
Also, 
induced current, 
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