State the principle of an electric generator.

Explanation

An electric generator works on the principle of electronromagnetic induction when a closed coil is rotated in a uniform magnetic field with its axis perpendicular to the direction of the field. The magnetic field lines passing through the coil changes and induce potential differences. Hence a cirrent is set up in it.
Electric motor
* It converts electrical energy into mechanical energy
* It works on the principle of magnetic field of electric current.
Electric generator
* It converts mechanical energy into electrical energy
* It works on the principle of electromagnetic induction.