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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

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

D

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

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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-III
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