Question

A point charge of +10-7C is situated at the centre of a cube of side 1 m. Calculate the electric flux through the surface of the cube

Answer 1

Given that;

$q=10^{-7}C$

Electric flux is;

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

$\phi= \frac{10^{-7}} {8.85\times10^{-12}}$

$\phi=0.1129\times10^5$

$\phi=1.13\times10^4 Nm^2/C$

Therefore the electric flux is $1.13\times10^4 Nm^2/C$