Two coils of self inductance L1 and L2 are placed so close to each other that the effective flux in one coil is completely linked with the other than them mutual inductance M between then is given by

Two coils of self inductance L1 and L2 are placed so close to each other that the effective flux in one coil is completely linked with the other than them mutual inductance M between then is given by 10. Two coils of self—inductances L I and LÉ are so close to each other that the effective flux in one coil is complaely linked withtheother, thålt}rmutual inductance M between them is given by—