[dʒ_ˈuː_l], [d͡ʒˈuːl], [dʒˈuːl]
Definitions of joule

English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics ( 1818 1889)

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

A unit of work which is equal to 107 units of work in the C. G. S. system of units ( ergs), and is practically equivalent to the energy expended in one second by an electric current of one ampere in a resistance of one ohm. One joule is approximately equal to 0. 738 foot pounds.

A unit expressing the amount of work done in one second by an electric current of 1 ampere against a resistance of 1 ohm.

The practical unit of electrical energy, equivalent to the work done by keeping up for one second a current of one ampere against a resistance of one ohm; named from the English physicist J. P. Joule ( 1818  1889).
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Usage examples for joule

If this condenser is charged to 20, 000 volts, we have stored up in it half a joule of electric energy, and the volume of the dielectric is 270 cubic centimetres. – Hertzian Wave Wireless Telegraphy by John Ambrose Fleming

The accepted measurement of the conversion of heat into work is known as Joule's equivalent; Joule having determined that the amount of power exerted in raising 772 lbs. – Modern MachineShop Practice, Volumes I and II by Joshua Rose

As determined by Joule heat energy has a certain definite relation to work, one British thermal unit being equivalent from his determinations to 772 foot pounds. – Steam, Its Generation and Use by Babcock & Wilcox Co.

The joule is the energy spent in I second by a flow of 1 ampere in 1 ohm. – The Radio Amateur's Hand Book by A. Frederick Collins

Joule of Manchester was the first to verify Mayer's law quantitatively. – The Mechanism of Life by Stéphane Leduc

First, that heat is a mode of motion was proved by Sir Humphry Davy and Count Rumford before 1820. In 1842 Joule of Manchester, England, proved the quantitative relation between mechanical energy and heat. – Our Unitarian Gospel by Minot Savage

Hence, to store up in a glass condenser electric energy represented by one joule at a pressure of 20, 000 volts, we require 500 cubic centimetres of glass, and it will be found that if we double the pressure and double the thickness of the glass, we still require the same volume. – Hertzian Wave Wireless Telegraphy by John Ambrose Fleming

Its first absolute verification occurred about 1846, when Dr. Joule showed that the fall of 772 lbs. – Life Everlasting by John Fiske

What a Parcel of Flowers and Graces might one pick up in his Writings, if it was more a propos, such as Slender Difficulty, Lean Temper, touchy Point, Cheek by Joule to con over, to be Uppish, Intents and Purposes, to glitter upon the Senses, Enrichments, renverse, Deconcert, bigger Entertainment of the Soul, don't, on't, can't, won't, 'tis, it's, at's, and the frequent Use of Proverbs. – An Essay on Criticism by John Oldmixon