Question

1.Why static electricity is called frictional electricity?

2.Explain "Repulsion is a surer test of electrification"

3.Explain "Attraction is not a surer test of electrification"

Answer 1

Static electricity is produced by rubbing to two objects. It is the friction between the two objects that generates attraction between the objects leading to charge transfer. It is due to this contribution of friction that static energy is also called frictional electricity.

Electricity from friction, two types of electricity, repulsion is a surer test of electrification, explanation of charging by rubbing in the light of electron theory. ... Charge resides on the outer surface of a conductor—Electric screening.

Attraction may occur between two oppositely charged bodies or a charged body and an uncharged one. That is why in attraction, one is not sure if both bodies are charged, However in repulsion, there are two bodies that have the same charge. That is why repulsion is the sure test of electrification.

Answer 2

Explanation:

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