State the principle of working of Van de Graff generator. State its uses .

State the principle of working of a Generator.

State the principle of workingof transformer?

State the principle of working of Vibration Magnetometer.

Van de Graff generator is used to

Van de Graff generator produces

With the help of neat diagram , descibe the principle, construction and working of Van de Graff generator.

Answer the following questions : State the principal on which the working of an electric generator is based.

State the uses of Van De Graff generator.

State the principles of electric motor and electric generator.

State the principle of moving coil Galvanometer?