Total electric flux coming out of a unit positive charge put in air is
${\varepsilon _0}$
$\varepsilon _0^{ - 1}$
${(4p{\varepsilon _0})^{ - 1}}$
$4\pi {\varepsilon _0}$
If the electric flux entering and leaving an enclosed surface respectively is ${\varphi _1}$ and ${\varphi _2}$ the electric charge inside the surface will be
Draw electric field lines of positive charge.
Figure shows electric field lines due to a charge configuration, from this we conclude that
If an electric field is given by $10 \hat{i}+3 \hat{j}+4 \hat{k}$, calculate the electric flux through a surface of area $10$ units lying in $y z$ plane ....... units
Three positive charges of equal value $q$ are placed at vertices of an equilateral triangle. The resulting lines of force should be sketched as in