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IEVref:131-12-05ID:
Language:enStatus: Standard
Term: differential resistance
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Symbol: Rd
Definition: 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.


Publication date:2008-09
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 131-12-05en.gif
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