Question

Calculate the number of electrons in 1 coulomb of charge per second through any cross section of the conductor

Answer 1

charge of electron = 1.6 × 10^-19
if charge is 1C = 1/1.6 x 10^-19 × 1
= 10^19/1.6
= 10/1.6 × 10^18
= 6.25 × 10^18
=> 6.25 × 10^18 electrons together constitute 1 Coulomb of charge.

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