please explain about self induction

SELF INDUCTANCE Self inductance of a coil is defined as the ratio of self-induced emf to the rate of change of current in the coil. Self inductance = emf/ DI/Dt

It is denoted by ‘L’ and it depends upon the physical characteristics of the coil.

Unit of self inductance is Henry.

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The phenomenon of production of back emf in a solenoid is known as self induction
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