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A metal rod of resistance R is fixed alo...

A metal rod of resistance `R` is fixed along a diameter of a conducting ring of radius `r` . There is a magnetic field of magnitude `B` perpendicular to the plane of the loop. The ring spins with an angular velocity `omega` about its axis. The centre of the ring is joined to its rim by an external wire `W` . The ring and `W` have no resistance. The current in `W` is

A

zero

B

`(Br^(2)omega)/(2R)`

C

`(Br^(2)omega)/R`

D

`(2Br^(2)omega)/R`

Text Solution

Verified by Experts

The correct Answer is:
D
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