Question

what is use of gaussian surface

Answer 1

A Gaussian surface (sometimes abbreviated as G.S.) is a closed surface in three-dimensional space through which the flux of a vector field is calculated; usually the gravitational field, the electric field, or magnetic field.

Answer 2

Gaussian surface is defined as a closed surface in a three dimensional space through which the magnetic flux of any type of vector field can be found; this includes the electric field, the gravitational field, or magnetic field.