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The static electric charge on the oil dr...

The static electric charge on the oil drop is `-3.2044xx10^(-19)C` . How many electrons are present on it ?

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Given static electric charge on oil drop `=-3.2044xx10^(-19)C`
Charge of electron `=-1.602xx10^(-19)C`.
Number of electrons present `=(-3.2044xx10^(-19))/(-1.602xx10^(-19))=2`.
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