Characteristics forward |SemiconductorElectronicJEEMain2022

JEE MAIN 2022

26-06-2022 S1

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 2V and 4V respectively, is :

Select the correct option:

1 : 2

5 : 1

1 : 40

20 : 1

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$\begin{aligned} & \mathrm{R}=\frac{\Delta \mathrm{V}}{\Delta \mathrm{i}} \\ & \frac{\mathrm{R}_1}{\mathrm{R}_2}=\frac{\Delta \mathrm{v}_1}{\Delta \mathrm{v}_2} \frac{\Delta \mathrm{i}_2}{\Delta \mathrm{i}_1}=\frac{0.1}{0.2} \times \frac{50}{5}=5\end{aligned}$

Question Tags

JEE Main

Physics

Easy

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