Junction Diode
Junction Diode: Overview
This topic explains the formation of the p-n junction, its characteristics, and forward and reverse biasing of junctions. It also discusses the diode as a full-wave and half-wave rectifier, its working, and the various types of junction diodes.
Important Questions on Junction Diode
The reverse current in a Zener diode starts increasing suddenly at a relatively low breakdown voltage of or so. Is this statement true or false?

Why are LEDs important with respect to environmental pollution?

A light emitting diode (LED) has a voltage drop of across it and passes a current of . When it operates with battery through a limiting resistor , the value of is

Write the formula for the ripple factor of a rectifier.

Explain the formation of potential barriers in a p-n junction.

Give the Expression for Variation of Current with Voltage of P-N Junction Diode


What are the three steps in the generation of emf in a solar cell?

A photodiode converts electrical energy into light energy.

What do you understand by an avalanche diode?

LED is a p-n junction diode which is _____ biased.


Describe the working of Light Emitting diodes (LEDs).

The breakdown mechanism in a lightly doped P-N junction under reverse biased condition is called _____ breakdown.

Low doping required for Avalanche breakdown in diodes.

The breakdown that occurs in reverse bias conditions in a narrow junction diode is known as


Pick out the incorrect statement regarding reverse saturation current in the p-n junction diode.

The reverse saturation current in a p-n junction diode is due to only the;

Is reverse saturation current dependent upon the change in temperature ? Explain.
