Question

If the charge on an elwctron is 1.6×10 coulomb , how many electroms should pass through a conductor in 1 second to constitute 1 ampere current

Answer 1

Hi.


I=Q/t

1 Ampere = 1 Coulomb /1 Second
Charge on 1 electron = 1.6 x 10^-19 Coulomb
By unitary method,

If 1.6 x 10^-19 Coulomb / Second (Ampere) = Current by 1 electron
then, 1( Coulomb / Second) or (Ampere) = 1 / (1.6 x 10^-19) electrons..


Hope this helps u!!