Question

state and prove gauss theorem​

Answer 1

I hope that this will help you

Answer 2

In physics, gauss's law also known as gauss flux theorem, is a law relating the distribution of electric charge to the resulting electric field. In its integral form, it states that the flux of the electric field out of an arbitrary closed surface is proportional to the electric charge enclosed by the surface, irrespective of how that charge is distributed. Even though the law alone is insufficient to determine the electric field across a surface enclosing any charge distribution this may be possible in cases where symmetry mandates uniformity of the field. Where no such symmetry exists,gauss law can be used in its differential form, which states that the divergence of the electric field is proportional to the local density of charge.

According to gauss theorem the net - outward normal electric flux through any closed surface of any shape is equivalent to (the symbol is in photo) times the total amount of charge contained within that surface.