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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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Charge on each electron = `-1.6022xx10^(-19)C`
Charge on oil drop `=-3.2044xx10^(19)C`
`therefore` Numbers of electrons
`" " =(-3.2044xx10^(-19)C)/(-1.6022xx10^(-19)C)=2.`
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