Foil Plates Place foil plates on the Van de Graaf generator face down. When the generator...

Foil Plates

Place foil plates on the Van de Graaf generator face down. When the generator is on, what happens to the plates? Repeat the experiment with the plates facing up. Do plates behave any different? If so, why? If not, why not? Explain your reasoning.

Please draw picture

Expert Solution

Van de Graaf generator is a device which accumulate charge (may be positive or negative depending on type of Van de Graaf generator) on the hollow metallic sphere.

When anything comes in contact with sphere it also gets same charged.

Case 1: Place foil plates on the Van de Graaf generator face down.

In this case plates are placed on generator so it also gets charged (same charge as sphere). Now all plates have similar charge as sphere and same charge repels so all plates will repel each other and they will apply repulsive force to plate also. So as they gets more and more charged the repulsive force will go on increasing and at a point the repulsive force will get enough to make them leave surface they will leave the surface and fly in theathe one by one. And again after sometime due to gravity they will fall on ground on by one.

Case:2 Plates facing up

Repulsive force purely depend on charge on the plates only not on their geometry or placement so it will behave same as they did in the first case.

samet mamat answered 1 year ago

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