MEDIUM
12th Meghalaya Board
IMPORTANT
Earn 100
With the help of a circuit diagram, show how a Zener diode can be used as a voltage regulator.
Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
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.
MEDIUM
12th Meghalaya Board
IMPORTANT
With the circuit diagram, distinguish between LED and photodiode. What is dark current?
