A) \[2\times {{10}^{16}}\]
B) \[5\times {{10}^{6}}\]
C) \[1\times {{10}^{17}}\]
D) \[4\times {{10}^{15}}\]
Correct Answer: A
Solution :
\[I=\frac{Q}{t}=\frac{ne}{t}\] \[or,\,\,n=\frac{It}{e}=\frac{3.2\times {{10}^{-3}}\times 1}{(1.6\times {{10}^{-19}})}=2\times {{10}^{-16}}\]
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