Question

calculate the numbers of electrons constituting one coulomb of charge

Answer 1

Charge of 1 electron=1.6×10^-19. Now if charge is 1.6×10^-19, then no. of electrons is 1  If charge is 1 coulomb, then no. of electrons=                       1÷1.6×10^-19×1            = 10^19÷1.6           =6.25×10^18 (approx.).

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