MEDIUM
12th Karnataka Board
IMPORTANT
Earn 100
Avani’s family uses filament bulbs at home while Om’s family uses LED bulbs. Which family will save more electricity? Write five other ways to save electricity.
Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
MEDIUM
12th Karnataka Board
IMPORTANT
Draw the voltage‐current characteristic of a zener diode.
MEDIUM
12th Karnataka Board
IMPORTANT
If the resistance is increased in the given figure, how will the readings of the ammeter and voltmeter change?
EASY
12th Karnataka Board
IMPORTANT
Discuss the two types of doping of silicon when small amounts of indium and arsenic are added. Name the type of semiconductors produced in each case.
EASY
12th Karnataka Board
IMPORTANT
What is Zener breakdown?
EASY
12th Karnataka Board
IMPORTANT
Name a material as a dopant to convert pure silicon to a p-type semiconductor.
HARD
12th Karnataka Board
IMPORTANT
Write down the names of some diodes used for special purposes and make their circuit diagrams. Write about their working and uses in short.
EASY
12th Karnataka Board
IMPORTANT
Name two donor impurities and two acceptor impurities.
EASY
12th Karnataka Board
IMPORTANT
Explain the working of photo-diode.
