A comb is seen attracting pieces of paper. The paper pieces undergo which of the following phenomena?

Charging by conduction

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Charging by induction

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Charging by rubbing

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None of the above

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Solution

The correct option is B Charging by induction
Whenever a charged body is brought nearby a neutral body, it induces opposite charge on the near surface of the neutral body. This is known as charging by induction. When a charged comb is brought near to the pieces of paper, it induces opposite charge on the paper. Since unlike charges attract each other, the paper pieces are attracted towards the comb.

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