Question

A point charge Q is placed at the vertex of a regular tetrahedron with square base of side a as shown in figure, where OA = OB = OC = OD $=\frac{a\sqrt{3}}{2}$. Flux of electric field associated with rectangular base is $\frac{Q}{n{ϵ}_0}$,where n is .

Answer 1

Consider a cube of side a and charge Q is at its center.
OA $=\frac{\sqrt{3}a}{2}$
$\varphi$ of any face is $\frac{Q}{6{ϵ}_0}$.