MEDIUM
12th Meghalaya Board
IMPORTANT
Earn 100
With the circuit diagram, distinguish between LED and photodiode. What is dark current?
Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
EASY
12th Meghalaya Board
IMPORTANT
Draw a neat diagram showing forward biasing of a p-n junction.
MEDIUM
12th Meghalaya Board
IMPORTANT
With the help of a circuit diagram, show how a Zener diode can be used as a voltage regulator.
MEDIUM
12th Meghalaya Board
IMPORTANT
Discuss the working of a photodiode. Why a photodiode is operated in reverse bias mode?
EASY
12th Meghalaya Board
IMPORTANT
Mention one practical application of logic gates.
MEDIUM
12th Meghalaya Board
IMPORTANT
A semiconductor has equal electron and hole concentration . On doping with a certain impurity electron concentration increases to . Calculate the new hole concentration. Also identify the new semiconductor.
MEDIUM
12th Meghalaya Board
IMPORTANT
What is the principle of a rectifier? Draw a neat diagram of full-wave rectifier circuit.
EASY
12th Meghalaya Board
IMPORTANT
What is V-I characteristic of a p-n junction diode? Draw the V-I characteristic of a diode in-
(a) forward bias;
(b) reverse bias;
MEDIUM
12th Meghalaya Board
IMPORTANT
Name the device which is used as voltage regulator. Draw the necessary circuit diagram and explain its working.
