Two coils are at fixed location: When coil 1 has no current and the current in coil 2 increase at the rate of `15.0 A s^(-1)`, the emf in coil 1 is `25 mV`, when coil 2 has no current and coil 1 has a current of `3.6 A`, the flux linkange in coil 2 is

Options

A. `16 m Wb`
B. `10 m Wb`
C. `4.00 m Wb`
D. `6.00 mWb`

Answer

D

Explanation

Coefficent of mutual inductance `M` is given by
`|M| = (e_(i))/((di_(2)//dt)) = (phi_(2))/(i_(1))`
`= 6 xx 10^(-3) = 6 mWb`