The number of electrons in one coulomb of electric charge is: |
$6.25×10^{-18}$ $6.25×10^{18}$ $1.6×10^{-19}$ $1.6×10^{+19}$ |
$6.25×10^{18}$ |
The correct answer is Option (2) → $6.25×10^{18}$ Charge on single electron, $e=-1.6×10^{-19}C$ ∴ n, total no of electron per coulomb = $\frac{Total\,charge}{Charge\,of\,one\,electron}$ $n=\frac{1}{6.25×10^{-19}}$ $=6.25×10^{18}$ |