If two coils-which we can now call inductors-are near each other. a current i in one coil produces a magnetic flux cf>B through the second coil. We have seen that if we change this flux by changing the current, an induced emf appears in the second coil according to Faraday’s law. An induced emf appears in the first coil as well.
This process is called self-induction, and the emf that appears is called a self-induced emf. It obeys Faraday’s law of induction just as other induced earns do.