Question

if comb is insulator then why it gets charged on rubbing? through hair?​

Answer 1

Answer:

If you comb your hair, for example, electrons leave the atoms and molecules in your hair and travel to the plastic comb. The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge.

Answer 2

Answer:

An object is called charged negative when it has extra electrons and positive if it has not enough electron. ... Now If you rub plastic comb against dry hair, electrons are removed from comb and added to dry hair. The reason for this phenomenon is related to atomic scaled physical properties.

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