joule

The International System unit of electrical, mechanical, and thermal energy.

A unit of electrical energy equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second.

A unit of energy equal to the work done when a force of one newton acts through a distance of one meter.

A practical unit of work or energy equal to 107 ergs, 0.10197 + kilogram-meters, 0.2388+ calories, or 0.7376+ foot-pounds. It was formally adopted as a unit by the international Congress in Chicago (1893) and was legalized in the United States in 1894.

An electrical unit proposed by Siemens.

A unit of work which is equal to 107 ergs (the unit of work in the C. G. S. system of units), and is equivalent to one watt-second, the energy expended in one second by an electric current of one ampere in a resistance of one ohm; also called the absolute joule. It is abbreviated J or j. The international joule is slightly larger, being 1.000167 times the absolute joule. The absolute joule is approximately equal to 0.737562 foot pounds, 0.239006 gram-calories (small calories), and 3.72506 x 10-7 horsepower-hours, and 0.000948451 B.t.u.

See under Equivalent, n.

In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J

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