Fr.: effet Joule-Thomson
The change in the temperature of a gas in the → throttling process.
Fr.: effet de Thomson
The absorption or emission of heat when current is passed through a single conductor whose ends are kept at different temperatures. If current is passed from hotter end to colder end of a copper wire, then heat is evolved along the length of the wire. When current is passed from colder end to the hotter end, then heat is absorbed.