The current in coil changes from `0.5A` to `2A` in `0.03s` inducing a voltage of `8V` across it. Find initial energy stored in the coil.

When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self - inductance of the coil is :

When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self - inductance of the coil is :

When current in a coil changes from 25 A to 12 A in 0.1 s , average voltage of 50 V is produced .The self inductance of the coil is

An emf of 2 V is induced in a coil when current in it is changed from 0 A to 10 A in 0-40 sec. Find the coefficient of self-inductance of the coil.

When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -

When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -