I just want to know why changing magnetic flux in a coil induces emf???
Thanks in advance.
It is probably an axiom or prostulate by Faraday. There is no theoretical deep understanding of the reason. If you can deal with a bit of maths, then the proof is as:-
Might be a question better posed on the classical physics area of the forum. At any rate, I'm not entirely sure that anyone knows why it happens, just that it does. Through experimentation, and a lot of thinking, we've figured out the equations that seem to predict the behavior; but to know, precisely, why it occurs, so far as I know, eludes us. I suppose one might find some answer looking in QM, but I'm not versed enough in that to tell you yes one way or the other.
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