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ampere

noun

am·​pere ˈam-ˌpir How to pronounce ampere (audio)
also
-ˌper How to pronounce ampere (audio)
plural amperes
1
: the practical meter-kilogram-second unit of electric current that is equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied across a resistance of one ohm
2
: the base unit of electric current in the International System of Units that is defined by setting the fixed numerical value of the elementary charge to 1.602176634 x 10-19 ampere seconds

Example Sentences

a current of 15 amperes
Recent Examples on the Web To get the atoms whipping around the inner chamber of the Russian-nesting-doll-like machine, a magnet will drive 15 million amperes of electricity through them. Adam Lashinsky, Fortune, 24 Apr. 2020 To get the atoms whipping around the inner chamber of the Russian-nesting-doll-like machine, a magnet will drive 15 million amperes of electricity through them. Adam Lashinsky, Fortune, 24 Apr. 2020 To get the atoms whipping around the inner chamber of the Russian-nesting-doll-like machine, a magnet will drive 15 million amperes of electricity through them. Adam Lashinsky, Fortune, 24 Apr. 2020 To get the atoms whipping around the inner chamber of the Russian-nesting-doll-like machine, a magnet will drive 15 million amperes of electricity through them. Adam Lashinsky, Fortune, 24 Apr. 2020 To get the atoms whipping around the inner chamber of the Russian-nesting-doll-like machine, a magnet will drive 15 million amperes of electricity through them. Laura Mallonee, Wired, 21 Apr. 2020 Each bolt contained about 10,000 amperes of current at its peak. Eric Berger & Lee Hutchinson, Ars Technica, 20 July 2019 Each bolt contained about 10,000 amperes of current at its peak. Eric Berger & Lee Hutchinson, Ars Technica, 20 July 2019 Each bolt contained about 10,000 amperes of current at its peak. Eric Berger & Lee Hutchinson, Ars Technica, 20 July 2019 See More

Word History

Etymology

André-Marie Ampère

First Known Use

1881, in the meaning defined at sense 1

Time Traveler
The first known use of ampere was in 1881

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