Question

If the charge on an electron is 1.6x10 coulombs how many electron should pass through a conductor in one second to constitute one ampere of current?

Answer 1

1 Ampere of current = 1C/1s
=1C /s
So number of electrons to be passed to constitute a current of 1 Ampere is equal to the number of electrons that constitute 1 C of charge
Charge = number of electrons . Charge on an electron

1 C / 1.6 * 10^-19 = number of electrons
6.25 * 10^18 = number of electrons

Answer 2

Given that

Charge (Q) = 1 C

Electron (e) = 1.6× 10^-19

Number of electron (n) = ?

Q= ne

1 C = n × 1.6×10^-19 C

n = 1/(1.6×10^-19)

n = 6.25 × 10^18 electron