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A square loop of 10 turns has each side ...

A square loop of 10 turns has each side 10 cm. It rotates in a magnetic field of 0.25 T and the maximum induced emf is 20 mV the angular speed of rotation is

A

`4 rad//s`

B

`0.4 rad//s`

C

`8 rad//s`

D

`0.8 rad//s`.

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