- The number of electric lines of force, crossing through a given area.
- It is represented by Φ
Total flux of the electric field E over any closed surface is equal to 1/ε0 times the net charge enclosed by the surface.
Applications of Gauss Law
- Filed due to an infinite long straight charged wire
- Electric field due to an infinite charged plane sheet
- Electric field due to two parallel charged plates
- Electric field due to uniformly charged spherical shell
Field due to an infinite long straight charged wire
E = Electric field
ds = surface area element on the Gaussian surface
r = radius of the cylinder
l = length of straight charged wire
(charge per unit length)