Two coils of self inductance 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is
6 mH
4 mH
16 mH
10 mH
Correct Option: B
Mutual Inductance of two coils M = √M1M2 = √2mH × 8mH = 4mH
