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Joule   /dʒul/   Listen
Joule

noun
1.
A unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second.  Synonyms: J, watt second.
2.
English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889).  Synonym: James Prescott Joule.






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"Joule" Quotes from Famous Books



... that L is here measured in electrical measure, or, adopting the unit given by Dr. Siemens in the British Association Address, in joules. One joule equals approximately 0.74 foot pound. Equation 3 gives at once an analytical proof of the second principle stated above, that for a given motor the current depends upon the couple, and upon it alone. Equation 2 shows that with a given load the speed depends upon E, the electromotive force of ...
— Scientific American Supplement, Vol. XV., No. 388, June 9, 1883 • Various



Words linked to "Joule" :   erg, work unit, physicist, heat unit, energy unit, watt second



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