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A metal rod of length l cuts across a un...

A metal rod of length l cuts across a uniform magnetic field B with a velocity v. If the resistance of the circuit of which the rod forms a part is r, then the force required to move the rod is

A

`(B^(2)l^(2)v)/(r)`

B

`(Blv)/(r)`

C

`(B^(2)lv)/(r)`

D

`(Blv^(2))/(r)`

Text Solution

Verified by Experts

The correct Answer is:
A
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