Answer to Question #308374 in Physics for raph

Question

At the center of a sphere of radius 0.5m a point charge of 2μC is placed. What electric flux is passing through the sphere?

Answer 1

The electric flux through the surface

$$\Phi=\oint EdA=\frac{q}{\epsilon_0}$$ $$\Phi=\frac{2.0*10^{−6}}{8.85*10^{-12}}=2.3*10^{5}\:\rm N\cdot m^2/C$$