GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the plastic strip acquired extra protons from the cotton.
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the plastic strip acquired extra protons from the charging process
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protons were created as the result of the charging process
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the plastic strip lost electrons to the cotton during the charging process
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Detailed explanation-1: -The plastic strip and cotton acquires opposite charges. This is because plastic strip acquires positive charges and loses electrons to cotton during the process, and therefore cotton acquires the negative charge.
Detailed explanation-2: -It lost all of its electrons to the cotton during the charging process. It has the opposite charge as the cotton. It would now be repelled by the piece of cotton which was used to charge it. It gained protons during the rubbing process.
Detailed explanation-3: -Static electricity causes hairs to attract each other and therefore stand up on end. If you rub a plastic rod with a cloth, the rod becomes positively charged, and cloth negatively charged. You can charge two insulators by using friction.