**P.No.15.6:- A pair of adjacent coils has a mutual inductance of 0.75H. If the current in the primary changes from 0 to 10A in 0.025s, what is the average induced emf in the secondary? What is the change in flux in it if the secondary has 500 turns?**

**Solution:-**

**Given Data:-**

**Mutual inductance = M = 0.75H**

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