Question 14.1: Two Identical Coils A and B of 500 turns each has on parallel planed such that 70% of flux produced by one coil links with the other. A current of 6A flowing in coil A produces a flux of 0.06m Wb in it. If the current in coil A changes from 10A to -10A in .03s, calculate (a) the mutual inductance and (b) the e.m.f. induced in coil B.