\( 10^{18} \) electrons pass from point A to point B in 0.1 s in a conductor. The value of the current is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → \( 1.6\,\mathrm{A} \)
Electric current is the charge crossing a section per unit time, and the charge of \( n \) electrons is \( ne \).
\( \displaystyle I = \frac{Q}{t} = \frac{n e}{t} \)
\( \displaystyle I = \frac{10^{18} \times 1.6\times10^{-19}\,\mathrm{C}}{0.1\,\mathrm{s}} = \frac{0.16\,\mathrm{C}}{0.1\,\mathrm{s}} = 1.6\,\mathrm{A} \)