Question

A body has a charge +3.2*10-7c calculate the number of electron
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Answer 1

NUMBER OF ELECTRON = 1.98 * 10¹² electron

Explanation:

e is the charge on electron= 1.620 * 10 ⁻¹⁹ C

now

total charge = no of electron * charge on one electron

no of electron =   $\frac{total charge }{charge on one electron }$

           =   3.2 * 10⁻⁷ / 1.62*10⁻¹⁹

           = 1.98 * 10¹² electron