Question

calculate the number of electrons that flows through a conductor in 1 second to constitute a current of 1 amp

Answer 1

1 Ampere = 1 Coulomb / 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 (Ampere) = 1 / (1.6 x 10^-19) electrons
,i.e, 6.25 x 10^18 electrons.

Answer 2

Answer:6.25×10^_18 electrons

Explanation:

I=Q/t = n×e/t

Given time t=1second, current (I)=1ampere

Charge on an electron =1.6×10^-19Coulomb

Then,

=> n=current(I)×time(t)/electron charge(e)

=> n= 1×1 / 1.6×10^-19

=>

n=6.25×10^18 no. Of electrons

Answer