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
22. What is the response time of light-emitting diodes (LEDs)?
- Less than 100 ns
- 50 ms
- 100 ms to 300 ms
- 400 ms
23. What type of temperature coefficient do thermistors have?
- Positive
- Negative
- Either positive or negative
- None of the above
24. Which of the following diodes has a negative-resistance region?
- Schottky
- Varactor
- Tunnel
- Power
25. The tuning diode is a ________-dependent, variable ________.
- voltage, resistor
- current, capacitor
- voltage, capacitor
- current, inductor
26. What is the response time of cadmium sulfide (CdS) in photoconductive cells?
- 100 ms
- 50 ms
- 25 ms
- 10 ms
27. The PIV rating of power diodes can be increased by stacking the diodes in series.
- TRUE
- FALSE
28. What are the typical ranges of reverse-bias current levels IS for low-power and high-power Schottky diodes at room temperature?
- Picoamperes, nanoamperes
- Nanoamperes, microamperes
- Microamperes, milliamperes
- Milliamperes, amperes
29. The current capability of power diodes can be increased by placing two or more in series.
- TRUE
- FALSE