Why is Van de Grraff generator enclosed in a steel tank filled with air ?

Van de Graff generator is used to

Van de Graff generator produces

Explain Van De Graff generator with the help of neat diagram.

State the uses of Van De Graff generator.

How is emf generated in: Van de Graft generator.

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

Why does a balloon burstssometimes when we are trying to fill air inside?

Draw a neat labelled diagram of Van de Graff generator.

Take 6-7 glass cups. Arrange them in a line and fill them with water gradually increasing water level from one end to other. Take a pencil and strike the cups sequentially. The sound generation by each cup will be different. Why is it so?

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