P-N Junction Diode

IMPORTANT

P-N Junction Diode: Overview

This Topic covers sub-topics such as P-N Junction Diode, p-n Junction, Avalanche Breakdown, Zener Breakdown, Reverse Saturation Current, Threshold Voltage, Diffusion Current in Semiconductors and, Drift Current in Semiconductors

Important Questions on P-N Junction Diode

HARD
IMPORTANT

Which of the following circuit diagram of pn junction diode is (i) forward bias and in (ii) reverse bias:
Question Image  Question Image  

EASY
IMPORTANT

In diode, increasing the forward voltage, the thickness of depletion layer ____

EASY
IMPORTANT

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

EASY
IMPORTANT

Low doping required for Avalanche breakdown in diodes. 

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

What is reverse saturation current in diode ? Why it is temperature dependent ?

EASY
IMPORTANT

When the p-n junction diode is reverse biased, the thickness of the depletion layer;

EASY
IMPORTANT

In a p-n junction diode;

MEDIUM
IMPORTANT

The reading of the ammeter for a silicon diode in the given circuit is:

Question Image

MEDIUM
IMPORTANT

Currents flowing in each of the following circuits A and B respectively are

Question Image

EASY
IMPORTANT

Identify the semiconductor devices whose characteristics are given below, in the order a, b, c, (d):

Question Image

Question Image

EASY
IMPORTANT

The forward-biased diode connection among the following is:

EASY
IMPORTANT

In case of p-n junction diode, the width of depletion region is

HARD
IMPORTANT

Find VAB for the circuit given below.

Question Image

MEDIUM
IMPORTANT

Ge & Si diodes conduct at knee voltage 0.3 V & 0.7 V respectively. If Ge diode connection are reversed, then value of V0 changes by x V, what is the value of 10x?

Question Image

MEDIUM
IMPORTANT

In the circuit shown in figure, find the magnitude of maximum potential difference (in V) between A & B?

Question Image

Question Image

MEDIUM
IMPORTANT

Calculate the value of output voltage V0 (in V)(to the closest integer) if the Si diode and Ge diode conduct at 0.7 V and 0.3 V respectively as shown in figure.

Question Image