Question

A charge q is placed at the point of intersection of body diagonals of a cube

Answer 1

• The electric flux passing from any of the face when a charge q is placed on the point of intersection of body diagonals of a cube is q/6ε₀

By applying the Gauss theorem flux passing from a closed surface is = Net charge inside the surface / ε₀

Charge is placed at the point of intersection so total flux is = q/ε₀

But there are 6 faces in a cube so it is distributed among them, hence flux is = q/6ε₀