Question

Calculate the charge of $6.24\times {10}^{18}$ electrons (in coulomb).

Answer 1

$1e^{-}$ has $1.6\times {10}^{-19}C$ charge,

$\therefore$ Total no. of charge in $6.24\times {10}^{18}{e}^{-}=(6.24\times {10}^{18})\times 1.6\times {10}^{-19}C=0.998C$