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A rod closing the circuit shown in Fig m...

A rod closing the circuit shown in Fig moves along a U shaped wire at a constant speed v under the action of the force F. The circuit is in a uniform magnetic field perpendicular to the plane. Calculate F if the rate of heat generation in the circuit is Q.

A

`F=Qv`

B

`F=Q/v`

C

`F=v/Q`

D

`F=sqrt(Qv)`

Text Solution

Verified by Experts

The correct Answer is:
B
`P=Fv implies F=P/V=Q/V`
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