Gauss’s LawIntroduction

Gauss’s law relates electric field to the charge distribution producing that field.

Gauss’s law gives us much easier way to calculate electric field then Coulomb’s law

Gauss’s law deals with the electric field and concept of electric field lines is central concept for studying Gauss’s Law

Bases of Gauss’s Law

Flux through any closed surface is measure of

total amount of charge inside it

Any charge outside the surface would not

contribute to the total flux

Statement of Gauss’s Law

Total flux of electric field depends on

• Net charge enclosed in the surface

• Surface chosen

distribution

of electric charge inside the surface

Electric field through surface

Using gauss’s law you can find

Using gauss’s law you can find

You have information about

You have information about

Surface on which we apply gauss’s law is known as Gaussian Surface

Gaussian Surface

Can be imaginary or geometrical

surface

Might be an empty space

Could be partially or fully embedded

in a solid body

Need not be a real surface

Conclusion