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Give scientific reasons for the followin...

Give scientific reasons for the following:
Small bits of paper are attached by a plastic comb which has been move vigorously through dry hair.

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When a plastic comb is moved vigorously through dry hair, it acquires electric charge. When this charged comb is brought near small bits of paper, they are attracted by the comb.
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NAVNEET PUBLICATION-STATIC ELECTRICITY-QUESTION BANK
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