Home
Class 12
PHYSICS
A comb run through one.s dry hair attrac...

A comb run through one.s dry hair attracts small bits of paper. Why? What happens, if the hair is wet?

Text Solution

Verified by Experts

If the hair are wet or it is a rainy day, then the friction between the hair and the comb reduces . The comb does not get charged and it will not attract small bits of paper.
Promotional Banner

Similar Questions

Explore conceptually related problems

When a charged comb is brought near a small piece of paper, it attracts. Does the paper become charged before being attracted?

In human, attached earlobes are a dominant feature over free earlobes while hypertrichosis (Y-linked) feature. A man with attached earlobed and extensive hair on pinna married a woman having free earlobes. The couple had one son with free earlobes and hairy pinna and two daughters with attached earlobes. One of the daughters with attached earlobes. One of he daughters married a man with free earlobes and sparse hair on pinna. They had two sons. What would be the characteristics of their ponnae ?

What happens when H_2S gas is passed through chlorine water ?

What happens when H_2S passed through FeCl_3 solution ?

What happens when Cl_2 gas is passed through dry slaked lime?

What happens when SO_2 gas is passed through H_2 S dissolved in water ?

What happens when: H_2S gas is passed through CuSO_4 solution.