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# Three point charges $+2q,-q$ and $+3q$ . What is the electric flux due to this configuration through the surface S?

$\begin{array}{1 1} \large\frac{q}{2 \in_0} \\ \large\frac{-q}{2 \in_0} \\ \large\frac{q}{ \in_0} \\ \large\frac{q}{3 \in_0} \end{array}$

$\phi _E= \large\frac{2q -q}{\in_0}= \frac{q}{\in_0}$
Answer : $\large\frac{q}{ \in_0}$