Dynamic resistance of a diode is given by

Question

Dynamic resistance of a diode is given by (A) rd=(Δ V/Δ I) (B) rd=-(Δ V/Δ I) (C) rd=( text Threshold voltage / text Current ) (D) rd=( text Breakdown voltage / text Current )

Tardigrade Admin · Accepted Answer

A p-n junction diode primarily allows the flow of current only in one direction (forward bias). The forward bias resistance is low as compared to the reverse bias resistance. For diodes, we define a quantity called dynamic resistance as the ratio of small change in voltage Δ V to a small change in current Δ I, rd=(Δ V/Δ I)

Q. Dynamic resistance of a diode is given by

$r_{d} = \frac{Δ V}{Δ I}$

$r_{d} = - \frac{Δ V}{Δ I}$

$r_{d} = \frac{Threshold voltage}{Current}$

$r_{d} = \frac{Breakdown voltage}{Current}$

Q. Dynamic resistance of a diode is given by

rd​=ΔIΔV​

rd​=−ΔIΔV​

rd​= Current Threshold voltage ​

rd​= Current Breakdown voltage ​

$r_{d} = \frac{Δ V}{Δ I}$

$r_{d} = - \frac{Δ V}{Δ I}$

$r_{d} = \frac{Threshold voltage}{Current}$

$r_{d} = \frac{Breakdown voltage}{Current}$