A) \[2\times {{10}^{16}}\]
B) \[5\times {{10}^{16}}\]
C) \[1\times {{10}^{17}}\]
D) \[4\times {{10}^{15}}\]
Correct Answer: A
Solution :
\[i=\frac{Ne}{t}\,\Rightarrow \,\frac{N}{t}=\frac{i}{e}=\frac{3.2\times {{10}^{-3}}}{1.6\times {{10}^{-19}}}=2\times {{10}^{16}}/sec\]
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