Question

Find the electric flux passing through shaded surface of cube of side d if 2q charge present at d distance d from the center of cube

Answer 1

Given :

Charge present inside the cube : 2q

To Find :

Electric flux passing through the cube

Solution :

• According to Gauss’s law the flux passing through a surface is equal to 1/ε₀ times the charge enclosed by the surface

• In the given problem the charge 2q is entirely present in the cube as it is in the center of the cube

• Flux = charge enclosed /ε₀

• Flux = 2q/ε₀

The flux passing through the cube is 2q/ε₀