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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)
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
View full answer
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