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
1
Expert's answer
2014-09-09T12:49:50-0400
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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