ohm

¹

[ ohm ]

noun

1. the standard unit of electrical resistance in the International System of Units (SI), formally defined to be the electrical resistance between two points of a conductor when a constant potential difference applied between these points produces in this conductor a current of one ampere. The resistance in ohms is numerically equal to the magnitude of the potential difference. : Ω

Ohm

²

[ ohm ]

noun

1. Ge·org Si·mon, [gey-, awrk, , zee, -mawn] 1787–1854, German physicist.

Ohm

¹

/ əʊm /

noun

1. OhmGeorg Simon17871854MGermanSCIENCE: physicist Georg Simon (ˈɡeːɔrk ˈziːmɔn). 1787–1854, German physicist, who formulated the law named after him

ohm

²

/ əʊm /

noun

1. the derived SI unit of electrical resistance; the resistance between two points on a conductor when a constant potential difference of 1 volt between them produces a current of 1 ampere Ω

ohm

¹

/ ōm /

1. The SI derived unit used to measure the electrical resistance of a material or an electrical device. One ohm is equal to the resistance of a conductor through which a current of one ampere flows when a potential difference of one volt is applied to it.

Ohm

²

1. German physicist who discovered the relationship between voltage, current, and resistance in an electrical circuit, now known as Ohm's law. The ohm unit of electrical resistance is named for him.

ohm

1. The unit of electrical resistance , named after the nineteenth-century German physicist Georg Ohm.

Other Words From

• ohm·ic [oh, -mik], adjective

Word History and Origins

Origin of ohm¹

First recorded in 1861; named after G. S. Ohm

Word History and Origins

Origin of ohm¹

C19: named after Georg Simon Ohm

Example Sentences

After much manœuvring about the Lahn, no way seemed possible for them save by crossing the Ohm.

From Project Gutenberg

His paper abounds with simple and practical formula: for the calculation of currents and resistances by the law of Ohm.

From Project Gutenberg

If R be still further increased, Ohm's law applies, and the current diminishes.

From Project Gutenberg

At Portrush the resistance of a mile, including the return by earth and the ground rails, is actually about 0.23 ohm.

From Project Gutenberg

The resistance of dry cells varies from less than 0.1 of an ohm when new to several ohms when old.

From Project Gutenberg