# ohm

[ohm]

- 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^{}

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

# Ohm

[ohm]

- Ge·org Si·mon, [gey-awrk zee-mawn] /geɪˈɔrk ˈzi mɔn/1787–1854, German physicist.

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for ohm

### Historical Examples

#### Wheatstone by his knowledge of Ohm's law and the electro-magnet was probably able to enlighten him.

Heroes of the TelegraphJ. Munro

#### We must therefore have a standard for the ohm, which is the measure of resistance.

Electricity for BoysJ. S. Zerbe

#### In applying this illustration to the voltaic cell, we make use of Ohm's law.

PhysicsWillis Eugene Tower

#### One of these methods depends upon an application of Ohm's law.

PhysicsWillis Eugene Tower

#### This furlough was perhaps the most important event in Ohm's life.

Makers of ElectricityBrother Potamian

# ohm

- 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

## Word Origin

C19: named after Georg Simon Ohm

# Ohm

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Word Origin and History for ohm

### n.

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.

Online Etymology Dictionary, © 2010 Douglas Harper

# ohm

([object Object])

*Symbol*Ω

- 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 American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

# ohm

[ōm]

- 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

- 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 American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

# ohm

[(ohm)]

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

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.