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Physics, 20.09.2020 18:01 mcampos49

Suppose that you have a rod that is positively charged, a rod that is negatively charged and a stand that allows rotation. If you are handed a polystyrene rod of unknown charge-state, how could you determine if it has a positive charge, a negative charge or if it is uncharged? Explain what happens to the unknown rod if it has a positive charge, a negative charge or if it is uncharged.

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