Question

A charge $Q$ is enclosed by a Gaussian spherical surface of radius $R$. If the radius is doubled, then the outward electric flux will :

• A. remain the same
• B. be doubled
• C. be reduced to half
• D. increase four times

Answer 1

The correct option is A remain the same

As, $\text{Total flux}=\frac{\text{Net charge enclosed}}{{ϵ}_0}$

So, it depends only on net charge enclosed by the surface.

Hence, the outward electric flux will remain the same.

Thus, $\left(C\right)$ is the correct answer.