IEVref: 131-12-05 ID: Language: en Status: Standard Term: differential resistance Synonym1: Synonym2: Synonym3: 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: ${R}_{d}=\frac{\mathrm{d}{u}_{\mathrm{AB}}}{\mathrm{d}i}$ 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 Source: Replaces: Internal notes: 2017-06-02: Cleanup - Remove Attached Image 131-12-05en.gif CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: