Thomson effect

Thomson effect
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.
[named after Sir W. THOMSON]

* * *

      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).

* * *


Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Thomson effect — Tomsono reiškinys statusas T sritis fizika atitikmenys: angl. Thomson effect; Thomson phenomenon vok. Thomson Effekt, m rus. эффект Томсона, m pranc. effet de Thomson, m …   Fizikos terminų žodynas

  • thomson effect — noun or thomson heat Usage: usually capitalized T : a redistribution of temperature differences along an otherwise homogeneous strip of metal due to an electric current passing through it called also Kelvin effect; see thomson electromotive force …   Useful english dictionary

  • Thomson effect — Смотри эффект Томсона …   Энциклопедический словарь по металлургии

  • Thomson effect — /ˈtɒmsən əfɛkt/ (say tomsuhn uhfekt) noun the production of a gradient of electrical potential along a conducting metal wire or strip which is subjected to a temperature gradient along its length. {named after Sir William Thomson1, Lord Kelvin} …  

  • Joule–Thomson effect — In physics, the Joule–Thomson effect or Joule–Kelvin effect describes the temperature change of a gas or liquid when it is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the environment.cite book… …   Wikipedia

  • Gibbs-Thomson effect — The Gibbs Thomson effect (also called the Gibbs Kelvin effect or Kelvin effect) relates surface curvature to vapor pressure and chemical potential. It is named after Josiah Willard Gibbs and William Thomson, 1st Baron Kelvin. (It is not to be… …   Wikipedia

  • inverse Thomson effect — Benedikso reiškinys statusas T sritis fizika atitikmenys: angl. Benedicks effect; inverse Thomson effect vok. Benedicks Effekt, m rus. обратный эффект Томсона, m; эффект Бенедикса, m pranc. effet Benedicks, m; effet Thomson inverse, m …   Fizikos terminų žodynas

  • Joule-Thomson effect — Džaulio ir Tomsono reiškinys statusas T sritis fizika atitikmenys: angl. Joule Thomson effect vok. Joule Thomson Effekt, m rus. эффект Джоуля Томсона, m; явление Джоуля Томсона, n pranc. effet Joule Thomson, m …   Fizikos terminų žodynas

  • Joule-Thomson effect — Džaulio ir Tomsono efektas statusas T sritis Energetika apibrėžtis Realiųjų dujų temperatūros kitimas, joms adiabatiškai ir izoentalpiškai ištekant pro droselį (kapiliarą, ventilį ar akytą pertvarą). atitikmenys: angl. Joule Thomson effect vok.… …   Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas

  • Joule–Thomson effect — droselinis efektas statusas T sritis chemija apibrėžtis Realiųjų dujų temperatūros kitimas joms ištekant pro droselį. atitikmenys: angl. effect of throttling; Joule–Thomson effect rus. дроссельный эффект; эффект Джоуля–Томсона ryšiai: sinonimas – …   Chemijos terminų aiškinamasis žodynas

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”