Assuming that the charge of an electron is 1.6 x 10–19 C, the number of electrons passing through a section of wire per second, when the wire carries a current of 1 A is :

Foundation

Physics Foundation

Charge Electric Field and Electric Potential

Question

Assuming that the charge of an electron is 1.6 x 10^–19 C, the number of electrons passing through a section of wire per second, when the wire carries a current of 1 A is :

1.6 × 10¹⁹

6.25 × 10¹⁸

0.625 × 10¹⁷

1.6 × 10^–19

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Charge on one electron, e= 1.6 × 10^–19C

time, t = 1s

current, I = 1s

number of electrons n = ?

I = $\frac{ne}{t}$

or n = $\frac{It}{e} = \frac{1 \times 1}{1 .6 \times 10^{- 19}}$ = 6.25 ×10¹⁸

Please subscribe our Youtube channel to unlock this solution.