A wire of length 1 m is moving at a speed of 2 ms-1 perpendicular to its length and in a homogeneous magnetic field of 0.5 T. The ends of the wire are joined to a circuit of resistance 6Ω. The rate at which work is being done to keep the wire moving at constant speed is - VgyanHub

Question:

A wire of length 1 m is moving at a speed of 2 ms-1 perpendicular to its length and in a homogeneous magnetic field of 0.5 T. The ends of the wire are joined to a circuit of resistance 6Ω. The rate at which work is being done to keep the wire moving at constant speed is

Options :

(a) 1/12 W
(b) 1/6 W
(c) 1/3 W
(d) 1 W

Answer :

(b) 1/6 W

Answer Steps :

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