Electronic Devices and Circuit Theory- Semiconductor Diodes
Electronic Devices and Circuit Theory- Semiconductor Diodes
1. The diode ________.
- is the simplest of semiconductor devices
- has characteristics that closely match those of a simple switch
- is a two-terminal device
- All of the above
2. It is not uncommon for a germanium diode with an Is in the order of 1–2 A at 25°C to have leakage current of 0.1 mA at a temperature of 100°C.
- TRUE
- FALSE
3. What does a high resistance reading in both forward- and reverse-bias directions indicate?
- A good diode
- An open diode
- A shorted diode
- A defective ohmmeter
4. What is the state of an ideal diode in the region of nonconduction?
- An open circuit
- A short circuit
- Unpredictable
- Undefined
6. The diffused impurities with ________ valence electrons are called donor atoms.
- 4
- 3
- 5
- 0
7. In which of the following color(s) is (are) LEDs presently available?
- Yellow
- White
- Orange
- All of the above
8. Determining rd to a high degree of accuracy from a characteristic curve is very accurate.
- TRUE
- FALSE
9. What is the range of the operating voltage level for LEDs?
- 5–12 mV
- 1.7–3.3 V
- 5–12 V
- 20–25 V
10. At what kind of operating frequency diffusion or transition is a capacitor represented in parallel with the ideal diode?
- Low frequency
- Moderate frequency
- Mid frequency
- Very high frequency