The northpole of a bar magnet is thrust into a coil of 100 turns so that the flux linkage increases from 1 microweber to 5 microweber in 1 millisecond. Calculate the average emf induced across the end of the coil.

A coil of 200 turns is linked with a magnetic flux that changes from 10^-5 weber to 10^-4 weber is a millisecond. Find the emf induced across the coil.

The current through a 1mH inductor changes from 5 ampere to 10 ampere in 1 millisecond. Find the emf induced.

A coil of 5 turns is threaded by a changing magnetic flux changing at the rate 5 xx 10^-3 weber per second. Find the average emf induced.

The current in a coil of self inductance 1 mH changes from zero to 10 Ampere in a time interval of 10 millisecond. Find the emf induced across the coil and the energy stored during that time.

A coil area 1000 turns and each of area 0.01 m^2 is in a magnetic field of 10^2 T. The magnetic field is at 90^@ to the plane of the coil. The coil is removed from the field in 0.1 second. Find the emf induced across the ends of the coil.

The current flowig through an inductor drops from 10A to 2A in 2m sec. If the self inductance of the coil is 10mH, find the emf induced across the ends of the inductor.