Small Signal Model

Diode resistance and conductance.

Darshan N
Updated: 19 March 2026
12 min read

Diode Small Signal Quiz

Test your knowledge of the small-signal resistance and conductance model of a PN junction diode.

Question 1 of 3

Q1.The small-signal dynamic resistance r_d of a forward-biased diode operating at DC current I_D is: