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A circular coil of radius 0.5m and resis...

A circular coil of radius 0.5m and resistance `3.14 Omega`is placed in a magnetic induction with its plane perpendicular to the field.The rate of change of magnetic induction so as to produce a current of 50 mA in the coil is

A

`0.2 Wb//m^2 s`

B

`0.2 T//s`

C

`0.02 T//s`

D

both a and b

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