# A particle of charge 1.8 μC is at the center

A particle of charge 1.8 μC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?

#### Solution:

We can use the following equation to figure out the net electric flux.

$\Phi=\dfrac{q}{\epsilon_0}$

(Where $\Phi$ is the net flux, $\epsilon_0$ is permittivity of free space and $q$ is the charge enclosed)

$\Phi=\dfrac{1.8\times10^{-6}}{8.85\times10^{-12}}$

$\Phi=2.034\times10^{5}$ $\dfrac{N\cdot m^2}{C}$