Semiconductor Devices — Practice Quiz
Maharashtra Board · Class 12 · Physics
Try a 4-question quiz on Semiconductor Devices for Maharashtra Board Class 12 Physics: tap an answer to check it and see why.
Interactive on Super Tutor
Studying Semiconductor Devices? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.
Free trial, no card needed.
Quick Quiz: Semiconductor Devices
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
In a half-wave rectifier circuit, if the input AC voltage has a frequency of 50 Hz, what is the frequency of the output DC pulses?
A Zener diode with breakdown voltage 6V is used in a voltage regulator circuit. The input voltage is 12V and series resistance is 100Ω. If the load current is 20mA, calculate the Zener current.
In an LED, light is emitted when:
A photodiode operates in which bias condition for best performance?
Sample Questions
Which of the following are advantages of a full-wave rectifier over a half-wave rectifier?
Show answer
Higher efficiency, Lower ripple factor, Uses both half-cycles, Better transformer utilization
Full-wave rectifier advantages: 1) Efficiency is 81.2% vs 40.6% for half-wave 2) Lower ripple as both cycles are used 3) Better transformer utilization 4) Uses both positive and negative half-cycles. However, it requires two diodes, not one.
In a common emitter transistor configuration, if the base current is 50 μA and current gain β = 100, calculate the collector current.
Show answer
5 mA
Given: IB = 50 μA = 50 × 10⁻⁶ A, β = 100 Using the relation: IC = β × IB IC = 100 × 50 × 10⁻⁶ = 5000 × 10⁻⁶ A = 5 × 10⁻³ A = 5 mA
Which of the following are universal logic gates?
Show answer
NAND gate, NOR gate
NAND and NOR gates are called universal gates because any Boolean function can be implemented using only NAND gates or only NOR gates. All other logic gates (AND, OR, NOT) can be constructed using combinations of NAND or NOR gates.
The output of an AND gate is HIGH when:
Show answer
All inputs are HIGH
An AND gate performs logical multiplication. The output Y = A·B is HIGH (1) only when both inputs A and B are HIGH (1). If any input is LOW (0), the output becomes LOW (0). This follows the Boolean equation Y = A·B.
+41 more questions on Semiconductor Devices (Maharashtra Board Class 12 Physics)
Practise AllFrequently Asked Questions
What are the important topics in Semiconductor Devices for Maharashtra Board Class 12 Physics?
How many practice questions are there for Semiconductor Devices?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Semiconductor Devices
For serious students
Get the full Semiconductor Devices chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Maharashtra Board Class 12 Physics. Free to start, no card needed.