Resistance and Ohm’s Law

Resistance and Ohm’s Law

OHM’S LAW

The current flowing through an ohmic conductor is directly proportional to the applied potential difference between the two ends of the conductor. Ohm’s Law states the relationship between the potential difference across a conductor and the current through it

RESISTANCE

Resistance is a measure of the opposition offered to the current flow in an electric circuit. Resistance is measured in ohms. All materials resist current flow up to some degree. All materials fall into one of two broad categories: Conductors and Insulators.