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  • Help me understand! The comb (rubbed on dry hair) attract small pieces of papers and this process is due to

The comb (rubbed on dry hair) attract small pieces of papers and this process is due to

  • Option 1)

    Paper is a good conductor

  • Option 2)

    Paper is an insulator

  • Option 3)

    Both a and b

  • Option 4)

    None of these

 

Answers (1)

best_answer

As we learnt in

Methods of charging 1. By friction -

When two bodies rub together both positive and negative charges in equal amounts appears simultaneously due to transfer of electron.

-

 

 When comb is rubbed on dry hair, it will deposit charge due to friction and this will create polarisation in the paper and hence it will exert force on paper.


Option 1)

Paper is a good conductor

This option is incorrect

Option 2)

Paper is an insulator

This option is correct

Option 3)

Both a and b

This option is incorrect

Option 4)

None of these

This option is incorrect

Posted by

divya.saini

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