Question

1) Um corpo possui carga de 9.6 nC. Qual o número de elétrons nesse corpo ? (utilize
e=1.6. 10° C).​

Answer 1

$\mathbf{Dados}\Longrightarrow Q=9.6\ \mathrm{nC}=9.6\times10^{-9}\ \text{C};\ e=1.6\times10^{-19}\ \text{C}.$

$\boxed{Q=ne}\Longrightarrow 9.6\times10^{-9}=n(1.6\times10^{-19})$

$\Longrightarrow n=\dfrac{9.6}{1.6}\times10^{-9+19}\ \therefore\ \boxed{n=6\times10^{10}\ \beta^{-}}$