- 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. Symbol: Ω
Origin of ohm
- Ge·org Si·mon, [gey-awrk zee-mawn] /geɪˈɔrk ˈzi mɔn/1787–1854, German physicist.
Examples from the Web for ohm
Wheatstone by his knowledge of Ohm's law and the electro-magnet was probably able to enlighten him.Heroes of the Telegraph
We must therefore have a standard for the ohm, which is the measure of resistance.Electricity for Boys
J. S. Zerbe
In applying this illustration to the voltaic cell, we make use of Ohm's law.
One of these methods depends upon an application of Ohm's law.
The success of Ohm as a teacher was recognized on all sides.Makers of Electricity
- 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 ampereSymbol: Ω
- Georg Simon (ˈɡeːɔrk ˈziːmɔn). 1787–1854, German physicist, who formulated the law named after him
Word Origin and History for ohm
unit of electrical resistance, 1867, in recognition of German physicist Georg S. Ohm (1789-1854), who determined the law of the flow of electricity. Originally proposed as ohma (1861) as a unit of voltage. Related: ohmage; ohmic; ohmeter.
- A unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals.
- 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.
- 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.
The unit of electrical resistance, named after the nineteenth-century German physicist Georg Ohm.