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Area Circuit theory / Circuit elements and their characteristics

IEV ref131-12-05

Symbol
Rd

en
differential resistance
for a resistive two-terminal element or two-terminal circuit with terminals A and B, derivative of the voltage uAB [131-11-56] between the terminals with respect to the electric current i in the element or circuit:

R d = d u AB di MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aacaWGsbWaaSbaaSqaaiaacsgaaeqaaOGaeyypa0ZaaSaaaeaaciGG KbGaamyDamaaBaaaleaaciGGbbGaaiOqaaqabaaakeaaciGGKbGaam yAaaaaaaa@4219@

where the electric current is taken as positive if its direction is from A to B and negative in the opposite case

Note – For an ideal resistor, the differential resistance Rd is equal to its resistance R.


fr
résistance différentielle, f
pour un bipôle résistif, élémentaire ou non, de bornes A et B, dérivée de la tension électrique uAB [131-11-56] entre les bornes par rapport au courant électrique i dans le bipôle:

R d = d u AB di MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aacaWGsbWaaSbaaSqaaiaacsgaaeqaaOGaeyypa0ZaaSaaaeaaciGG KbGaamyDamaaBaaaleaaciGGbbGaaiOqaaqabaaakeaaciGGKbGaam yAaaaaaaa@4219@

où le courant est positif si le sens du courant est de A vers B et négatif dans le cas contraire

Note – Pour une résistance idéale, la résistance différentielle Rd est égale à sa résistance R.


de
differentieller Widerstand, m

es
resistencia diferencial

ja
微分抵抗

no
nb differensiell resistans

nn differensiell resistans

pl
rezystancja różniczkowa

pt
resistência diferencial

zh
微分电阻

Publication date: 2008-09
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