The most important law related to electrical circuits and is consequently needed for almost every electricity exam question!
Key Concepts
Ohm's law states that potential difference across a conductor is proportional to the current flowing through the conductor, provided that temperature remains constant.
Substituting the proportional sign, we end up with an equation for resistance:
\(V \propto I\)
\(V=RI\)
The following results show an example of a non-Ohmic conductor:
MY PROGRESS
How much of Ohm's law have you understood?