Grade Upto college level General Physics

What is self induction and self inductance? Derive an expression for the self inductance of a long solenoid carrying current

palash singh

12 Years agoGrade Upto college level

1 Answer

Apoorva Arora

12 Years ago

Self induction is that phenomenon in which a change in electric current in a coil produces an induced emf in the coil itself.

Mathematical representation:

Self induced emf in a coil is directly proportional to the rate of change of electric current in the coil i.e.

$E\propto -\frac{\Delta I}{\Delta T}$

$E= -L\frac{\Delta I}{\Delta T}$

where L= self inductance of the coil

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

$L= \frac{E}{\Delta I/\Delta T}$

It depends upon the physical characteristics of the coil and its unit is henry.

Thanks and Regards

Apoorva Arora

IIT Roorkee

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What is self induction and self inductance? Derive an expression for the self inductance of a long solenoid carrying current

palash singh

1 Answer

Apoorva Arora

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