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A uniform current carrying ering of mass...

A uniform current carrying ering of mass `m` and radius `R` is connected by as massless string as shown. A uniform megnetic field `B_0` exists in the region to keep the ring in horizontal position, then the current in the ring is

A

`(mg)/(piRB_0)`

B

`(mg)/(RB_0)`

C

`(mg)/(3piRB_0)`

D

`(mgl)/(piR^2B_0)`

Text Solution

Verified by Experts

The correct Answer is:
A
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