Two-Terminal Devices Questions and Answers
Two-Terminal Devices questions with answers form the base for studying semiconductor components such as diodes, Zener diodes, and LEDs. These aptitude questions and answers with explanations are highly relevant for exams like GATE, ISRO, and DRDO. Understanding two-terminal devices helps students analyze rectifier circuits, clippers, and voltage regulators. Practicing aptitude questions with solutions PDF improves problem-solving speed and accuracy for electronics engineering aspirants. These questions also appear frequently in technical interviews, making them vital for both exam and placement preparation in the electronics domain.
Two-Terminal Devices
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29 questions
1. Which of the following areas is (are) an application of infrared-emitting diodes?
- Intrusion alarms
- Shaft encoders
- Paper-tape readers
- All of the above
2. Schottky diodes are very effective at frequencies approaching ________.
- 20 GHz
- 10 MHz
- 100 MHz
- 1 MHz
3. What is the voltage drop across Schottky diodes?
- 0 V to 0.2 V
- 0.7 V to 0.8 V
- 0.8 V to 1.0 V
- 1.0 V to 1.5 V
4. In which region is the operating point stable in tunnel diodes?
- Negative-resistance
- Positive-resistance
- Both negative- and positive-resistance
- Neither negative- nor positive-resistance
5. What is the maximum temperature limit for liquid-crystal displays (LCDs)?
- 10ºC
- 30ºC
- 60ºC
- 100ºC
6. Which of the following diodes is limited to the reverse-bias region in its region of operation?
- Schottky
- Tunnel
- Photodiode
- Rectifier
7. The majority of power diodes are constructed using ________.
- molybdenum
- platinum
- tungsten
- silicon
8. Which of the following is (are) diodes?
- Schottky
- Varactor
- Tunnel
- All of the above
9. What is the limit of peak current IP in tunnel diodes?
- A few microamperes to several hundred amperes
- A few microamperes to several amperes
- A few microamperes to several milliamperes
- A few microamperes to several hundred microamperes
10. What is the response time of LCDs?
- Less than 100 ns
- 50 ms
- 100 ms to 300 ms
- 400 ms