name two substances which can be charged by friction
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(i) Glass. (ii) Ebonite.
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Two substances which can be charged by friction are:
1. Glass rod
2. Silk cloth
* Substances can be charged by rubbing and this charge generated is referred to as static electric charge.
* When a glass rod is rubbed with a silk cloth, electrons are transferred from the glass to the cloth which imparts a negative charge to the cloth.
On the other hand, the glass rod becomes positively charged due to deficiency of electrons.
* Similar phenomenon can be observed in case of plastic comb and dry hair, rubber balloon and fur, and many more combinations.
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