Two charges of 5Q and -2Q are situated at the points (3a, 0) and (-5a, 0) respectively. The electric flux through a sphere of radius '4a' having center at origin is:
1
\(\frac{2Q}{\varepsilon_0}\)
2
\(\frac{5Q}{\varepsilon_0}\)
3
\(\frac{7Q}{\varepsilon_0}\)
4
\(\frac{3Q}{\varepsilon_0}\)