Question

State the principle of an electric motor . Name some appliances in which the electric motor is used

Answer 1

a electric motor is based on the principal that when a rectangular coil is placed and a current is passing through it then it will experiences a force which rotates it continuously.
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Answer 2

An electric motor works on the principle that when an electric current is passed through a conductor placed normally in a magnetic field, a force acts on the conductor as a result of which the conductor begins to move and hence mechanical energy is obtained.
Example- Fans.