A horizontal wire is free to slide on the verticle rails of a conducting frame as shown in figure. The wire has a mass m and length l and the resistance of the circuit is R. If a uniform magnetic field B is directed perpendicular to the frame, the terminal speed of the wire as it falls under the force of gravity is In the above problem if m=1kg and teminal velocity attained by its is 4m/s after falling a height of 1m, the energy dissipated as heat till then is (g=10m//s^(2))

A horizontal wire is free to slide on the verticle rails of a conducti

1.	A horizontal wire is free to slide on the verticle rails of a conducting frame as shown in figure. The wire has a mass m and length l and the resistance of the circuit is R. If a uniform magnetic field B is directed perpendicular to the frame, the terminal speed of the wire as it falls under the force of gravity is In the above problem if m=1kg and teminal velocity attained by its is 4m/s after falling a height of 1m, the energy dissipated as heat till then is (g=10m//s^(2))
Answer» 10J 2J epsilonJ 12J Answer :B

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