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unit of electrical energy, 1882, coined in recognition of British physicist James P. Joule (1818-1889).
joule (jōōl, joul)
The International System unit of electrical, mechanical, and thermal energy.
A unit of electrical energy equal to the work done when a current of 1 ampere is passed through a resistance of 1 ohm for 1 second.
A unit of energy equal to the work done when a force of 1 newton acts through a distance of 1 meter.
unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named in honour of the English physicist James Prescott Joule, it equals 107 ergs, or approximately 0.7377 foot-pounds. In electrical terms, the joule equals one watt-second-i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.