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Directions : (16-20)

Self-Induction

When a current I flows through a coil, flux linked with it is \[\phi =LI\], where L is a constant known as self-inductance of a coil Amy change in current sets up an induced e.m.f. in the coil. Thus, self-inductance of a coil is the induced emf set up in it when the current passing through it changes at the unit rate. It is a measure of the opposition to the growth or the decay of current flowing through H the coil. Also, value of self-inductance depends on the number of turns in the solenoid, its area of cross-section and the relative permeability of its core material.

The inductance in a coil plays the same role as

A) inertia in mechanics

B) energy in mechanics

C) momentum in mechanics

D) force in mechanics.