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A horizontal wire is freee to slide on t...

A horizontal wire is freee to slide on the vertical rails of a conducting frame as shown in figure. The wire has a mass m and length l. The wire has a mass m and length l. Resistance of the cirucuit is R. If a uniform magnetic field B is directed perpendicular to the frame, then terminal speed of the wire as it fails under the force of gravity is

A

`(mgR)/(Bl)`

B

`(mgl)/(BR)`

C

`(B^(2)l^(2))/(mgR)`

D

`(mgR)/(B^(2)l^(2))`

Text Solution

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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-III
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