A charge $Q$ is situated at the comer of a cube, the electric flux passed through all the six faces of the cube is
$\frac{Q}{{2{\varepsilon _0}}}$
$\frac{Q}{{6{\varepsilon _0}}}$
$\frac{Q}{{8{\varepsilon _0}}}$
$\frac{Q}{{{\varepsilon _0}}}$
Electric flux through a surface of area $100$ $m^2$ lying in the $xy$ plane is (in $V-m$) if $\vec E = \hat i + \sqrt 2 \hat j + \sqrt 3 \hat k$
A charge $Q$ is placed at a distance $a/2$ above the centre of the square surface of edge $a$ as shown in the figure. The electric flux through the square surface is
Three positive charges of equal value $q$ are placed at the vertices of an equilateral triangle. The resulting lines of force should be sketched as in
Draw electric field lines when two positive charges are near.
For a closed surface $\oint {\overrightarrow {E \cdot } } \,\overrightarrow {ds} \,\, = \,\,0$, then