The ≈imate ratio of resistances in the forward and reverse b... | PHYSICS - SEMICONDUCTOR DIODE | SolveeIt | Solveeit

Today, June 19

Question

The approximate ratio of resistances in the forward and reverse bias of the PN-junction diode is

A

$10^{2}:1$

B

$10^{- 2}:1$

C

$1:10^{- 4}$

D

$1:10^{4}$

Answer

$1:10^{4}$

Explanation

Solution

Resistance in forward biasing $R_{fr} \approx 10\Omega$ and resistance in reverse biasing $R_{Rw} \approx 10^{5}\Omega$ ⇒ $\frac{R_{fr}}{R_{Rw}} = \frac{1}{10^{4}}$