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A very small circular loop of area 5xx10...

A very small circular loop of area `5xx10^(-4) m^(2)` resistance 2`Omega` and negligible inductance is initially coplanar and concentric with a much larger fixed circular loop of radius 0.1m. A constant current of 1 ampere is passed in larger loop and smaller loop is rotated with a angular velocity .`omega`. `"rads"^(-1)` about its diameter. The induced emf is ____ `xx 10^(-9)V`

A

`(pi omega)/(8)cos omega t`

B

`(pi omega)/(2)sin omega t`

C

`pi omega^(2)sin omega t`

D

`pi omega sin omega t`

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