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The number of turns in the coil of an ac...

The number of turns in the coil of an ac genrator is `5000` and the area of the coil is `0.25m^(2)`. The coil is rotate at the rate of `100 "cycles"//"sec"` in a magnetic field of `0.2W//m^(2)`. The peak value of the emf generated is nearly

A

786 kV

B

440 kV

C

220 kV

D

157 kV

Text Solution

Verified by Experts

The correct Answer is:
D
Peak value of emf generated in generator is given by
`e_(0)=omegaNBA`
`=(2piv)NBA`
`=2xx3.14xx100xx5000xx0.2xx0.25`
= 157 kV
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