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Answer to Question #45774 in Electric Circuits for mahaylia

Question #45774
A polythene rod resting on two watch glasses which are as a low friction pivot. A negatively charged rod is brought near the polythene rod. If the polythene rod is attracted what are two conclusions
Expert's answer
If the polythene rod is attracted then there are two conclusion:
1. Polythene rod is positively charged. Object with opposite charges attracts.
2. Polythene rod is uncharged. In this case, polarization of polythene lead to a small positive charge appearance on the side that closer to the negatively charged rod. And this positive charge attracted to the negative.

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