Electronic Devices-Two-Terminal Devices
Electronic Devices-Two-Terminal Devices
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