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A current of 3A, in one coil, causes a f...

A current of 3A, in one coil, causes a flux in the second coil of 2000 turns to change by `6xx10^(-4)Wb` per turns of the secondary coil. The mutual inductance of the pair of coils is

A

6 H

B

2 H

C

0.4 H

D

4 H

Text Solution

Verified by Experts

The correct Answer is:
C
`nphi=MI`
`therefore M=(nphi)/(I)=(2000xx6xx10^(-4))/(3)=0.4H`
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