An isolated metal sphere placed close to a Van de Graaff generator is touched. The net final charge on the sphere is that of the generator.
What would happen if we touched the metal sphere on the side closer to the Van de Graaff generator?
Draw a labelled diagram of Van de Graaff generator. State its working principle to show how introducing a small charged sphere into a larger sphere, a large amount of charge can be transferred to the outer sphere. State the use of this machine and also point out its limitations.