Question

what is electric motor name and state the rule on which electric motor works

Answer 1

Electric motor is a machine which comes electrical energy to mechanical energy
*It works on the basis of magnetic effects of electric current
*It experiences a force due to a magnetic field which results in motion of the conductor present in it

Answer 2

It is a device which convert electrical energy into mechanical energy.
it works on Fleming 's left hand rule .
it works on the principle that when a rectangular coil is placed in a magnetic field and current is passed through it then a mechanical force act on it which rotate it continuously.