# ohm

## noun

: the practical meter-kilogram-second unit of electric resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

## Examples of ohm in a Sentence

Recent Examples on the Web Rated at 32 ohms and with a sensitivity of 105 dB at 1V, the Empyrean II can deliver an ear-bleeding maximum 130 dB SPL. Robert Ross, Robb Report, 9 Apr. 2024 One of my favorites is his differentiation of the resistances of dead male and female bodies: 12,500 ohms and 5,000 ohms, respectively. IEEE Spectrum, 31 Mar. 2024 Payne drew inspiration for the company’s name from Georg Simon Ohm, a 19th Century German physicist and mathematician whose research led to Ohm’s law, the relationship between voltage, current and resistance in an electrical circuit, and the ohm, the unit of electrical resistance. Georgann Yara, The Arizona Republic, 11 Jan. 2024 Now flip the switch On and the meter should read less than one ohm. Joseph Truini, Popular Mechanics, 29 Mar. 2022 Indicator light: Power the LED indicator light with the + 29-V DC from the power-supply output and limit the current with a 10k-ohm, ½-watt resistor. IEEE Spectrum, 31 Oct. 2018 In general, speakers with a lower rating like 4 ohms will need a more powerful receiver to drive them, while 8-ohm speakers, which are the most common, will work with most receivers. Don Melanson, Popular Mechanics, 18 July 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ohm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

## Word History

Etymology

Georg Simon Ohm

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of ohm was in 1861

ohm

Ohm

## Cite this Entry

“Ohm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ohm. Accessed 15 Jul. 2024.

## Kids Definition

ohm

noun
: a unit of electric resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

## Medical Definition

ohm

noun
: the practical mks unit of electrical resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

Ohm

## biographical name

Georg Simon 1787–1854 German physicist

## More from Merriam-Webster on ohm

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