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A uniform conducting ring of mass pi kg ...

A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field `B = (hat (i) + t^(2) hat (j))T` is present in the region, where t is time in seconds. Resistance of ring is `2 (Omega)`. Then

Time (in second) at which ring start toppling is

A

`(10)/(pi)`

B

`(20)/(pi)`

C

`(5)/(pi)`

D

`(25)/(pi)`

Text Solution

Verified by Experts

The correct Answer is:
A
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