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Area Electromagnetism / Electromagnetic concepts and quantities

IEV ref121-11-26

en
(electric) potential difference
difference between the electric potentials at two points

Note – The electric potential difference VbVa between two points a and b is equal to the negative of the line integral, along any path linking points a and b, of the irrotational vector ( E+ A t ) MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaamaabmaabaacbmGaa8xraiabgUcaRmaalaaabaGaeyOaIyRaaGPaVlaa=feaaeaacqGHciITcaWG0baaaaGaayjkaiaawMcaaaaa@3EAB@ , where E is the electric field strength, A a magnetic vector potential and t the time:

V b V a = r a r b ( E + A t ) dr MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaaiaadAfadaWgaaWcbaacbaGaa8NyaaqabaGccqGHsislcaaMi8UaaGjbVlaadAfadaWgaaWcbaGaa8xyaaqabaGccqGH9aqpcaaMe8UaeyOeI0IaaGjcVpaapehabaWaaeWaaeaaieWacaGFfbGaey4kaSYaaSaaaeaaiiaacqqFciITcaaMe8Uaa4xqaaqaaiab9jGi2kaaysW7caWG0baaaaGaayjkaiaawMcaaaWcbaGaa4NCamaaBaaameaaieqacaaFHbaabeaaaSqaaiaa+jhadaWgaaadbaGaaWNyaaqabaaaniabgUIiYdGccqGHflY1caWFKbGaa4NCaaaa@57E2@

where ra and rb are the position vectors for a and b, respectively, and dr is the vector line element.


fr
différence de potentiel (électrique), f
différence entre les potentiels électriques en deux points

Note – La différence de potentiel électrique VbVa entre deux points a et b est égale à l'opposé de la circulation, le long d’un chemin quelconque joignant les points a et b, du vecteur irrotationnel ( E+ A t ) MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaamaabmaabaacbmGaa8xraiabgUcaRmaalaaabaGaeyOaIyRaaGPaVlaa=feaaeaacqGHciITcaWG0baaaaGaayjkaiaawMcaaaaa@3EAB@ , où E est le champ électrique, A un potentiel vecteur magnétique et t le temps:

V b V a = r a r b ( E + A t ) dr MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaaiaadAfadaWgaaWcbaacbaGaa8NyaaqabaGccqGHsislcaaMi8UaaGjbVlaadAfadaWgaaWcbaGaa8xyaaqabaGccqGH9aqpcaaMe8UaeyOeI0IaaGjcVpaapehabaWaaeWaaeaaieWacaGFfbGaey4kaSYaaSaaaeaaiiaacqqFciITcaaMe8Uaa4xqaaqaaiab9jGi2kaaysW7caWG0baaaaGaayjkaiaawMcaaaWcbaGaa4NCamaaBaaameaaieqacaaFHbaabeaaaSqaaiaa+jhadaWgaaadbaGaaWNyaaqabaaaniabgUIiYdGccqGHflY1caWFKbGaa4NCaaaa@57E2@

ra et rb sont les rayons vecteurs de a et b respectivement et dr est l'élément vectoriel d'arc.


ar
فرق جهد (كهربائي)

de
elektrische Potentialdifferenz, f
Potentialdifferenz, f

es
diferencia de potencial (eléctrico)

fi
potentiaaliero

it
differenza di potenziale (elettrico)

ja
電位差

no
nb elektrisk potensialdifferens

nn elektrisk potensialdifferens

pl
różnica potencjałów elektrycznych
różnica potencjałów

pt
diferença de potencial (eléctrico)

ru
разность (электрических) потенциалов

sv
elektrisk potentialdifferens

Publication date: 1998-08
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