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Charge q is uniformly spread on thin rin...

Charge q is uniformly spread on thin ring of radius R. The ring rotates about its axis with a uniform frequency f Hz. The magnitude of magnetic induction at the centre of the ring is

A

`(mu_(0)g)/(2pif R)`

B

`(mu_(0)gf)/(2piR)`

C

`(mu_(0)qf)/(2R)`

D

`(mu_(0)q)/(2fR)`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-MOVING CHARGE AND MAGNESIUM-SECTION C
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