Question

what is the principle of an electric motor

Answer 1

Electrical motor the electric motor is a device which converts electrical energy to mechanical energy. There are mainly three types of electric motor. All of these motors work in more or less same principle. Working of electric motor mainly depends upon the interaction of magnetic field with current.

Answer 2

A motor is an electrical machine which converts electrical energy into mechanical energy. The principle of working of a DC motor is that "whenever a current carrying conductor is placed in a magnetic field, it experiences a mechanical force".