Resposta:
Explicação passo a passo:
i = 8 A
Δt = 2 s
Carga elétrica
[tex]i = \frac{\Delta Q}{\Delta t} \\\\8 = \frac{\Delta Q}{2}\\\\\Delta Q = 2 * 8\\\\\Delta Q = 16\:\:C[/tex]
Número de elétrons
[tex]\Delta Q = n.e\\\\16 = n*1,6.10^{-19}\\\\\frac{16}{1,6.10^{-19}} = n\\\\n=10.10^{19}\\\\n=1.10^{20}\:\:ele\´trons[/tex]