Question

Difference between self induction and mutual induction

Answer 1

Answer:

Self-Induction

1. Self-Induction is the characteristic of the coil itself.

2. When the main current in the coil decreases, the induced current opposes the decay of current in the coil.

3. When the main current in the coil increases, the induced current opposes the growth of current in the coil.

Mutual Induction

1. Mutual induction is the characteristic of a pair of coils.

2. When the main current in the coil decreases, induced current developed in the neighbouring coil opposes the decay of current in the coil.

3. When the main current in the coil increases, The induced current developed in the neighbouring coil opposes the growth of current in the coil

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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 .