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A thin ring of radius R metre has charg...

A thin ring of radius `R` metre has charge `q` coulomb uniformly spread on it. The ring rotates about its axis with a constant frequency of `f` revolution/s. The value of magnetic induction in `Wb m^(-2)` at the centre of the ring is

A

`(mu_0qf)/(2piR)`

B

`(mu_0q)/(2pifR)`

C

`(mu_0q)/(2fR)`

D

`(mu_0qf)/(2R)`

Text Solution

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The correct Answer is:
D
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PRADEEP-MAGNETIC EFFECT OF CURRENT AND MAGNETISM-Exercise
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