When $10^{19}$ electrons are removed from a neutral metal plate through some process, the charge on it becomes _____.

+ 1.6 C

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- 1.6 C

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10^{19} C

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10^{- 19} C

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Solution

The correct option is A $+ 1.6 C$
As $10^{19}$ is removed from the neutral metal.
So, loss of charge
$= 1.6 \times 10^{- 19} \times 10^{19} = 1.6 C$
So, charge on metal $= + 1.6 C$ .

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