Discussion Forum



1)

The V-I characteristic of a diode is shown in the figure. The ratio of forward to reverse bias resistance is:

942021564_zevneojfy4iv-q.jpeg


A) 10

B) $10^{-6}$

C) $10^{6}$

D) 100

Answer:

Option B

Explanation:

Forward bias resistance

= $\frac{ΔV}{ΔI}$

= $\frac{0.1}{10\times10^{-3}}$ =10Ω

Reverse bias resistance = $\frac{10}{10^{-6}}$ = 107Ω

Ratio of resistances

= $\frac{Forward bias resistance}{Reverse bias resistance}$ = $10^{-6}$