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A square loop of side 22 cm is changed t...

A square loop of side `22 cm` is changed to a circle in time `0.4 sec` with its plane normal to a magnetic field `0.2 T`. The emf induced is

A

`+6.6 mv`

B

`-6.6 mv`

C

`+13.2 mv`

D

`-13.2 mv`

Text Solution

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The correct Answer is:
B
NA
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