Which statement is true for Gauss law-

Options

A. All the charges whether inside or outside the gaussian surface contribute to the electric flux.
B. Electric flux depends upon the geometry of the gaussian surface.
C. Gauss theorem can be applied to non uniform electric field.
D. The electric field over the gaussian surface remains continuous and uniform at every point.

Answer

D

Explanation

From Gauss.s law of electrostatics, we know that only charges contain within the Gaussian surface contribute to the flux. Also, we know the electric flux depends only on total charge and nature of medium and has nothing to do with geometry. Furthermore Gauss theorem is applicable to the case of uniform electric field as that will allow the formation of a symmetrical Gauss surface. Hence, options (a), (b), (c) are also false. Turns out that electric field remains continuous at every point over a Gauss surface.