Answer :
The charge of one electron is 1.6 x 10⁻¹⁹ C
Number of electrons = (50 x 10⁻⁶) / 1.6 x 10⁻¹⁹
= 3.125 x 10¹⁴ electrons
Number of electrons = (50 x 10⁻⁶) / 1.6 x 10⁻¹⁹
= 3.125 x 10¹⁴ electrons