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# Calculate the charge carried by $12.5 × 10^{18}$ electrons.

$\begin{array}{1 1}(A)\;2\;c\\ (B)\;4\;c \\(C)\;3\; c \\(D)\; 6\;c\end{array}$

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## 1 Answer

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$Q = 12.5 × 10^{18} × 1.6 × 10^{–19}$
$\quad=2c$
Hence A is the correct answer.
answered May 28, 2014 by