Joule's law
Joule's law Joule's law 1. (Elec.) The law that the rate at which heat is produced in any part of an electric circuit is measured by the product of the square of the current times the resistance of that part of the circuit. If the current (i) is constant for an interval of time (t), the energy (H) in heat units equals i^{2}Rt, R being resistance. [Webster 1913 Suppl.]

2. (Thermodynamics) The law that there is no change of temperature when a gas expands without doing external work and without receiving or rejecting heat. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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• Joule's law — Joule o dėsnis statusas T sritis automatika atitikmenys: angl. Joule s law vok. Joulesches Gesetz, n rus. закон Джоуля Ленца, m pranc. loi de Joule, f ryšiai: sinonimas – Džaulio dėsnis …   Automatikos terminų žodynas

• joule's law — noun Usage: usually capitalized J Etymology: after J. P. Joule : either of two statements in physics: (1) the rate at which heat is produced by a steady current in any part of an electric circuit is jointly proportional to the resistance and the… …   Useful english dictionary

• Joule's law — Physics. 1. the principle that the rate of production of heat by a constant direct current is directly proportional to the resistance of the circuit and to the square of the current. 2. the principle that the internal energy of a given mass of an …   Universalium

• Joule’s law — Džaulio dėsnis statusas T sritis Standartizacija ir metrologija apibrėžtis Dėsnis, formuluojamas taip: laidininke, kai juo teka elektros srovė, išsiskiriantis šilumos kiekis Q yra proporcingas srovės kvadratui I², laidininko varžai R ir srovės… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• Joule's law — /ˈdʒulz lɔ / (say joohlz law) noun 1. the principle that internal energy of a given mass of an ideal gas is independent of its volume or pressure and depends only on its temperature. 2. the principle that the heat produced by an electric current… …   Australian English dictionary

• Joule's law — noun Physics a law stating that the heat produced by an electric current i flowing through a resistance R for a time t is proportional to i2Rt …   English new terms dictionary

• Joule's Law —   The rate of heat production by a steady current in any part of an electrical circuit that is proportional to the resistance and to the square of the current, or, the internal energy of an ideal gas depends only on its temperature.   U.S. Dept.… …   Energy terms

• Joule's law — noun the quantitative relationship between the quantity of heat produced in a conductor and the electric current flowing through it …   Wiktionary

• Joule's laws — are a pair of laws concerning the heat produced by a current and the energy dependence of an ideal gas to that of pressure, volume, and temperature, respectively. Joule s first law, also known as the Joule effect, is a physical law expressing the …   Wikipedia

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