Ohm's law

American  

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.

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Ohm's law British  

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

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Ohm's law Scientific  

/ ōmz /

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.

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Etymology

Origin of Ohm's law

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

Example Sentences

See Examples For:

Ohm's law

Electric conduction, which is crucial for many devices, follows Ohm's law: a current responds proportionally to applied voltage.

From Science Daily ● Apr. 23, 2024

The relationships described by Darcy’s Law have close similarities to Fourier’s law in the field of heat conduction, Ohm’s law in the field of electrical networks, or Fick’s law in diffusion theory.

From Textbooks ● Jan. 1, 2017

To see the relationship of power to resistance, we combine Ohm's law with P = IV .

From Textbooks ● Aug. 12, 2015

One statement of Ohm's law gives the relationship between current I , voltage V , and resistance R in a simple circuit to be I = V .

From Textbooks ● Aug. 12, 2015

Ohm’s law states that the strength of a current due to an electromotive force falls off in proportion as the resistance in the circuit increases.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Nehemiah Hawkins