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A rectangular coil of 300 turns has an a...

A rectangular coil of `300` turns has an average area of average area of `25 cmxx10 cm` the cooil rotates with a speed of `50 cps ` in a uniform magnetic field of strength `4xx10^(-2)T` about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)`

A

`3000pi`

B

`300pi`

C

`30pi`

D

`3pi`

Text Solution

Verified by Experts

The correct Answer is:
C
`e_(0)=NABomega=NAB2pif`
= `300xx25xx10xx10^(-4)xx4xx10^(-2)xx2pixx50`
= `30pi` Volt.
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