Question

difference between self induction and mutual induction

Answer 1

Self Inductance( in one coil only) is Inductance in a coil due to the current flowing in the same coil. And mutual Inductance(between two coils) is Inductance in one coil due to current flowing in the othe coil.

Answer 2

.MUTUAL INDUCTION- consider two coils of wire kept side by side. When the strength or direction of the current in one coil changes the magnetic flux around it changes. As a result an emf is induced in the secondary coil . This phenomenon is the mutual induction.

SELF INDUCTION- The change in the magnetic flux due to the flow of an AC in a solenoid will generate a back emf in a direction opposite to that applied to it. This phenomenon is known as self induction .