Question

A collection of four charges and four Gaussian surfaces are shown in the figure. The charges have values q1=8 nC, q2=-8 nC, q3=11 nC, and q4 = -19 nC.

Part (a) what is the flux through the first surface, si, in Nm²/C?

Answer 1

$$ \begin{aligned} &\Phi=\frac{q_{e n c}}{\varepsilon_{0}} \\ &\Phi_{S 1}=\frac{8 \cdot 10^{-9}}{8.85 \cdot 10^{-12}} N m^{2} / C=903.95 \mathrm{Nm}^{2} / C \end{aligned} $$