Electric flux through a closed surface in free space enclosing a charge `q` is

The electric flux through the surface

The electric flux through a chlosed surface area S enclosing charge Q is phi . If the surface area is doubled, then the flux is

The electric flux through the surface :

Which of the following law gives a relation between the electric flux through any closed surface and the charge enclosed by the surface ?

The net flux passing through a closed surface enclosing unit charge is

Figure shows four charges q_1,q_2,q_3,and q_4 fixed is space. Then the total flux of the electric field through a closed surface S, due to all the charges, is

If electric flux passing through a close surface is zero then :-