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A 50 Hz ac current of crest value 2 A fl...

A 50 Hz ac current of crest value 2 A flows mutual inductance between the primary and secondary be 0.25 H, the crest voltage induced in the secondary is

A

15.7 V

B

1.57 V

C

17.5 V

D

157 V

Text Solution

Verified by Experts

The correct Answer is:
D
`e=M(dI)/(dt)`
`=M(d)/(dt)I_(0)sinomegat=MI_(0)omegacos omegat`
`therefore e_(0)=MI_(0)omega`
`=0.25xx2xx2pixx50=157V`
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