The I-V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltages of 2 V and 4 V respectively, is :

Question

The I-V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltages of 2 V and 4 V respectively, is : (A) 1: 2 (B) 5: 1 (C) 1: 40 (D) 20: 1

Tardigrade Admin · Accepted Answer

R =(Δ V /Δ i ) ( R 1/ R 2)=(Δ v 1/Δ v 2) (Δ i 2/Δ i 1)=(0.1/0.2) × (50/5)=5

Q. The I-V characteristics of a $p - n$ junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltages of $2 V$ and $4 V$ respectively, is :

$1 : 2$

$5 : 1$

$1 : 40$

$20 : 1$

$R = \frac{Δ V}{Δ i}$
$\frac{R _{1}}{R _{2}} = \frac{Δ v _{1}}{Δ v _{2}} \frac{Δ i _{2}}{Δ i _{1}} = \frac{0.1}{0.2} \times \frac{50}{5} = 5$

Q. The I-V characteristics of a p−n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltages of 2V and 4V respectively, is :

1:2

5:1

1:40

20:1