Is it true that a plastic comb attracts small pieces of paper once it is used to comb dry hair?

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Detailed Solution

The above statement is True.
When used to comb dry hair, a plastic comb attracts small pieces of paper because it becomes electrically charged when we rub it against the hair. The paper receives an opposite charge from the charged comb, and since opposite charges are attracted to one another, the paper sticks to the comb. The comb, covered in negatively charged electrons, also transforms into negatively charged, leaving the hair with a positive charge. This “separation of charge” is the reason behind the collection of effects we call static electricity. Two objects with different charges attract (or pull towards) each other.

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