Question

At the center of a cube of edge 80.0cm, a charge of 170 µC is found. (1 µC = 10^-6 Coulombs) (Permittivity  

    of free space (ϵ₀) 8.85x10^-12 C² / N.m²)

Answer 1

Electric flux

$\phi=\frac{q}{6\epsilon_0}$

$\phi=\frac{170\times10^{-6}}{6\times8.85\times10^{-12}}=3.201\times10^6Wb$