Home
Class 12
PHYSICS
A certain p-n junction, having a depleti...

A certain `p-n` junction, having a depletion region of width `20 mum`, was found to have a breakdown voltage of 100 V. If the width of the depletion region is reduced to `1 mu m` during its production, then it can be used as a Zener diode for voltage regulation of

A

5 V

B

10 V

C

`7.5` V

D

`2000` V

Text Solution

Verified by Experts

The correct Answer is:
A
Break down voltage is proportional to width of depletion region .
When width reduce to 1 Nm thus becomes `(1)/(20)` times then break down voltage also becomes `(1)/(20)` times thus it become 5V
So, Zener diode can used for voltage regulation of 5 V
Promotional Banner

Similar Questions

Explore conceptually related problems

If the forward voltage in a diode is increased, the width of the depletion region-

In a p-i-n diode solar cell, the width of the depletion region is increased by using

The increase in the width of the depletion region in a p-n junction diode is due to:

In a zener diode, the reverse bias voltage is 3 V and the width of the depletion region is 300 A the electric field intensity will be ____ (V)/(cm)

In p-n junction, having depletion layer of thickness 2 ×10^(-6)m the potential difference across it is 0.2 V. The electric field is

The knee voltage of a p-n junction diode is 0.8 V and the width of the depletion layer is 2muA . The electric field in the depletion layer is

The depletion layer in a p-n junction diode is 10^(-6) m wide and its knee potential is 0.5 V, then the inner electric field in the depletion region is

In a p-n junction diode having depletion layer of thickness 10^(-6)m , the potential across it is 0.1V . The electric field produced is