Joule's' law'

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 ideal gas is solely a function of its temperature.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Joule effectJoule-Thomson effect
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