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← Bihar Board Class 12 PYQ
Semiconductor Electronics
Bihar Board Class 12 · Physics · 39 past questions
Topic
Doping and extrinsic semiconductors
2
Logic gates and Boolean algebra
2
Binary number system
1
Rectifiers
0
Semiconductor basics and energy bands
0
Transistors
0
p-n junction diode and special diodes
0
Level
Easy
5
Moderate
1
Tough
0
Year
2026
6
2025
5
2024
7
2023
7
2022
2
2021
5
2019
3
2018
2
2017
3
5 of 39 ·
show all
Q28
2021 Set A
Boolean expression for NOR gate is
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Q29
2021 Set A
The decimal number of binary number $(1001)_2$ is
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Q30
2021 Set A
A $p$-type semiconductor is
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Q31
2021 Set A
Donor impurity atom has valency
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Q33
2021 Set A
Which of the following is correct for fundamental gate ?
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