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.

Dutch: joule, wattseconde
Polish: dżul, watosekunda, J

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

synonym: James Prescott Joule.