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Thomson effect

noun, Physics.
1.
the tendency of unevenly heated segments of a strip of a conductor to increase or decrease in temperature differences when an electric current is passed through the strip.
Origin
named after Sir W. Thomson
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for thomson-effect

Thomson effect

noun
1.
(physics) the phenomenon in which a temperature gradient along a metallic (or semiconductor) wire or strip causes an electric potential gradient to form along its length
Word Origin
named after Sir William Thomson, Lord Kelvin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for thomson-effect

Thomson effect

the evolution or absorption of heat when electric current passes through a circuit composed of a single material that has a temperature difference along its length. This transfer of heat is superimposed on the common production of heat associated with the electrical resistance to currents in conductors. If a copper wire carrying a steady electric current is subjected to external heating at a short section while the rest remains cooler, heat is absorbed from the copper as the conventional current approaches the hot point, and heat is transferred to the copper just beyond the hot point. This effect was discovered (1854) by the British physicist William Thomson (Lord Kelvin).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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