Question

If the charge on an electron is 1.6 x 10-19c, how many electrons should pass through a conductor in 1 sec to constitute 1 A current

Answer 1

current is charge flowing in unit sec

let we neet n no of charge for current 1 A to flow

I=q/t

1=ne/t

1=ne/1

n=1/e

n=1/(1.6×10^-19)

n=10^17 ×(6.25)