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The coil of an ac generator rotates at a...

The coil of an ac generator rotates at a frequency of `60 Hz` and develops an induced emf of `120 V (rms)`. The coil has an area of `3.0 xx 10^(-3) m^(2)` and consists of `500` turns. The magnitude of the magnetic field in which the coil rotates is

A

`0.30 T`

B

`3.00 T`

C

`0.03 T`

D

`30 T`

Text Solution

Verified by Experts

The correct Answer is:
A
`B=(sqrt(2)V_(r.m.s))/(NA omega)`
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