Gaussian surface – definition, examples, properties
In this post, we will cover the definition of Gaussian surface and its examples. We will also study the properties of the Gaussian surface.
[ Read Gauss’ Law statement and derivation ]
Definition of Gaussian surface
A Gaussian surface is an imaginary and arbitrary closed surface in 3D space that must pass through the point where the electric field is to be calculated.
[Read Electric flux ]
Examples of Gaussian surface
The surface of a sphere, the surface of a cylinder, and the surface of a cube can be considered a Gaussian surface.
2D surfaces like square surfaces, disk surfaces, etc. are not Gaussian surfaces.
Properties of Gaussian surface
- It should be a closed surface.
- The Gaussian surface must pass through the point where the electric field is to be calculated.
- Gaussian surface must have a shape according to the symmetry of the source so that the electric field is normal to the surface at each point and constant in magnitude.
[ Read Gauss’ Law statement and derivation ]
