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Van der Graafff electrostatic generator ...

Van der Graafff electrostatic generator is based on

A

1. Phenomenon of corona discharge only

B

2. charge always resides on the outer surface of a hollow conductor

C

3. Colomb's law

D

d. both (a) and (b)

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The correct Answer is:
D
It is based on (i) the phenomenon of coron discharge [charge density `((q)/(A))` at sharp ponts is very large as A is very small] (ii) the charge always resides on the outer surface of a hollow conductor.
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