Definition of Watt-hour

WordNet 2.0
watt-hour

Noun
1. a unit of energy equal to the power of one watt operating for one hour
(hypernym) work unit, heat unit, energy unit
(part-holonym) kilowatt hour, kW-hr, Board of Trade unit, B.T.U.

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Watt-hour definition was found in categories: Science & Technology(3)  Society & Culture(1)  Language, Idioms & Slang(1)  Encyclopedia(1)  

Watt-hour Definition from Science & Technology Dictionaries & Glossaries

NRC Nuclear Energy Glossary
Watt-hour
An electrical energy unit of measure equal to 1 watt of power supplied to, or taken from, an electrical circuit steadily for 1 hour.

Energy Glossary
WATT-HOUR
One watt of power expended for one hour. One thousandth of a kilowatt-hour.

Electrochemistry Dictionary
watt-hour
"Measurement unit of electrical energy. Symbol: ""Wh"". Related units are that of energy density: watt-hour/kilogram (Wh/kg) and watt-hour/liter (Wh/l). "


Watt-hour Definition from Society & Culture Dictionaries & Glossaries

Environmental Engineering (English ver.)
WATT-HOUR (Wh)
An electrical energy unit of measure equal to one watt of power supplied to, or taken from, an electrical circuit steadily for one hour.


Watt-hour Definition from Language, Idioms & Slang Dictionaries & Glossaries

hEnglish - advanced version
watt-hour

watt-hour
n : a unit of energy equal to the power of one watt operating for one hour



Watt-hour Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Watt-hour
The watt-hour (symbol W·h or Wh) is a unit of energy. It is most commonly used on household electricity meters in the form of the kilowatt-hour (kW·h or kWh), which is 1,000 watt-hours.

It is not used in the International System of Units (SI), despite being based on the watt, as the hour is not an SI unit. The SI unit of energy is the joule (J), equal to one watt-second. It is, however, a commonly used unit, especially for measuring electric energy.

1 watt-hour is equivalent to 3,600 joules (1 W x 3600 s), the joule being the canonical SI unit of energy. Thus a kilowatt-hour is 3,600,000 joules or 3.6 megajoules.


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