Question

A charge q is placed at the point of intersection of body diagonals of a cube. What is the electric flux passing through any one of its face?

Answer 1

Answer:

If charge is placed in the centre of cube,flux through surface of cube is 6ϕ , where ϕ is flux through each face.by Gauss's law,6ϕ=q∈0=> ϕ=q6∈0Hence B is the correct answer.

Answer 2

Charge is placed at center of cube .therefore total flux is q/Epsilon ,one face has 1/6 of total flux.