Coils A and B in a magnetic circuit have 600 and 500 turns respectively. A current of 8 A in coil A produces a flux of 0.04 Wb. If the coefficient of coupling is 0.2, determine (a) self-inductance of coil A (b) flux linking with coil B (c) average emf induced in coil B when the flux with it changes from zero to full value in 0.02 s

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