What will be the coefficient of mutual inductance of a pair of coil if a current of 3 ampere in one coil cause the flux in the second coil of 1000 turns to change by `10(-4)`Wb in each turn ?

Explanation

Coefficient of mutual inductance = M = ?
`I_(1)=3A`
`phi_(2)=10^(-4) wb`
Number of turns in the coil = N = 1000
Total flux `= phi = N phi_(2)`
`phi=1000xx10^(-4)=0.1 wb`
`phi = MI`
`rArr M =(phi)/(I)`
`=(0.1)/(3) =0.0333 H`
`rArr M =3.33 xx10^(-2) H`