How much mutual inductance will be produced (in joule) if the change in magnetic flux in any coil Y due to current of 4 A in any associated coil X is given by 0.4 Wb?

Options

A. 0.2 H
B. 0.4 H
C. 0.6 H
D. 0.1 H

Answer

D

Explanation

We know that the magnetic flux associated with coil Y is directly proportional to current flowing in X coil, i.e. `phi_(Y)prop I_(X)`
Here, `phi_(Y)`=change in magnetic flux in coil X
M=Mutual inductance
`implies phi_(Y)=MI_(X)` . . . (i)
Given, `I_(X)=4A,phi_(Y)=0.3Wb`
Then from Eq. (i), we et `0.4=Mxx4impliesM=(0.4)/(4)=0.1J`