Ohm's law

noun

Electricity.

1. the law that for any circuit the electric current is directly proportional to the voltage and is inversely proportional to the resistance.

Ohm's law

noun

1. the principle that the electric current passing through a conductor is directly proportional to the potential difference across it, provided that the temperature remains constant. The constant of proportionality is the resistance of the conductor

Ohm's law

1. A law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current. Mathematically, the law states that V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms. For a given voltage, higher resistance entails lower current flow.

Word History and Origins

Origin of Ohm's law¹

First recorded in 1840–50; named after G. S. Ohm