Two charges of $5 Q$ and $-2 Q$ are situated at the points $(3 a, 0)$ and $(-5 a, 0)$ respectively. The electric flux through a sphere of radius $4a$ having center at origin is
$\frac{2 Q}{\varepsilon_0}$
$\frac{5 \mathrm{Q}}{\varepsilon_0}$
$\frac{7 Q}{\varepsilon_0}$
$\frac{3 Q}{\varepsilon_0}$
Why do two electric field lines not intersect each other ?
Why do electric field lines not form closed loop ?
Draw electric field lines when two positive charges are near.
Explain electric flux.
Obtain Gauss’s law from the flux associated with a sphere of radius $\mathrm{'r'}$ and charge $\mathrm{'q'}$ at centre.