The total electric flux emanating from a closed surface enclosing an α-particle (e- electronic charg

Question

The total electric flux emanating from a closed surface enclosing an α-particle (e- electronic charge) is

Professor PC Thomas Classes · Answer

An α-particle has a charge of +2e. According to Gauss's law, the total electric flux through a closed surface enclosing a charge q is $\phi = \frac{q}{\epsilon_0}$. Therefore, $\phi = \frac{2e}{\epsilon_0}$.