Question

The working principle of a Van de Graff generator is :

• A. the charge given to a conductor which is hollow inside, is transferred to the outer surface and scatters uniformly over it
• B. the charge given to a conductor which is hollow inside, is transferred to the inner surface and scatters uniformly over it
• C. the charge given to a solid conductor, is transferred to the outer surface and scatters uniformly over it
• D. the charge given to a solid conductor, is transferred to the inner surface and scatters uniformly over it

Answer 1

The correct option is A the charge given to a conductor which is hollow inside, is transferred to the outer surface and scatters uniformly over it

Principle of Van de Graff generator:

1) The electric discharge takes place in air or gas at pointed conductors readily.

2) If a hollow conductor is in a contact with another conductor then the hollow conductor continuously accepts all the charge supplied by the other conductor irrespective of its growth in potential. This charge on the hollow conductor is transferred on its surface and is uniformly distributed on it.