" Write the principle of working of an electric motor."

(a) Name one device which works on the magnetic effect of current. (b) Name one device which works on the phenomenon of electromagnetic induction. (c) Which device converts electric energy into mechanical energy? (d) Describe the principle of working of an electric motor. (e) Explain the principle of working of an electric generator.

Write the principle of working of a metre bridge .

State the principle on which the working of an electric motor is based.

State the principle on which the working of an electric motor is based. With a neat and well labelled diagram, explain the construction of an electric motor.

Work of electric motor is

State the principle on which the working of an electric generator is based.

State the principle on which the working of an electric generator is based .