Electronic Devices-Special-Purpose Diodes
Electronic Devices-Special-Purpose Diodes
1. Schottky diodes are also known as
- PIN diodes.
- hot carrier diodes.
- step-recovery diodes.
- tunnel diodes.n
2. Zener diodes with breakdown voltages less than 5 V operate predominantly in what type of breakdown?
- avalanche
- zener
- varactor
- Schottky
3. The Schottky diode is used
- in high-power circuits.
- in circuits requiring negative resistance.
- in very fast-switching circuits.
- in power supply rectifiers.
4. You have an application for a diode to be used in a tuning circuit. A type of diode to use might be
- an LED.
- a Schottky diode.
- a Gunn diode.
- a varactor.
5. What kind of diode is formed by joining a doped semiconductor region with a metal?
- laser
- tunnel
- pin
- Schottky
7. LEDs are made out of
- silicon.
- germanium.
- gallium.
- silicon and germanium, but not gallium.
8. The normal operating region for a zener diode is the
- forward-bias region.
- reverse-bias region.
- zero-crossing region.
- reverse-breakdown region.
9. A 6.2 V zener is rated at 1 watt. The maximum safe current the zener can carry is
- 1.61 A.
- 161 mA.
- 16.1 mA.
- 1.61 mA.
10. The process of emitting photons from a semiconductive material is called
- photoluminescence.
- gallium arsenide.
- electroluminescence.
- gallium phosphide.