how charges are produced by friction
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Explanation:
When insulating materials rub against each other, they may become electrically charged . Electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. The material that gains electrons becomes negatively charged. The material that loses electrons is left with a positive charge.
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Rubbing certain materials with one another can cause the built-up of electrical charges on the surfaces. So charges are produced by friction.
Example:- Combing hair charges are transferred from the hair to comb due to friction.
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