1. What is the state of an ideal diode in the region of nonconduction?
2. How many orbiting electrons does the germanium atom have?
3. How many terminals does a diode have?
4. What unit is used to represent the level of a diode forward current IF?
5. The diffused impurities with ________ valence electrons are called donor atoms.
6. In which of the following color(s) is (are) LEDs presently available?
7. Determining rd to a high degree of accuracy from a characteristic curve is very accurate.
8. What is the range of the operating voltage level for LEDs?
9. At what kind of operating frequency diffusion or transition is a capacitor represented in parallel with the ideal diode?
10. Which of the following devices can check the condition of a semiconductor diode?
11. Which of the following is an atom composed of?
12. The condition of a semiconductor diode can be determined quickly using a ________.
13. How many valence electrons does a silicon atom have?
14. What is the resistor value of an ideal diode in the region of conduction?
15. Calculate the power dissipation of a diode having ID = 40 mA.
16. Calculate static resistance RD of a diode having ID = 30 mA and VD = 0.75 V.
17. In which of the following is the light intensity measured?
18. Calculate ID if RD = 30 and VD = 0.84 V.
19. Which of the following elements is most frequently used for doping pure Ge or Si?
20. Calculate the temperature coefficient in %/° C of a 10-V nominal Zener diode at 25° C if the nominal voltage is 10.2 V at 100° C.
21. In general, LEDs operate at voltage levels from ________ V to ________ V.
22. Determine the nominal voltage for the Zener diode at a temperature of 120° C if the nominal voltage is 5.1 volts at 25° C and the temperature coefficient is 0.05%/° C.
23. What is the maximum power rating for LEDs?
24. The ________ diode model is employed most frequently in the analysis of electronic systems.
25. What is the value of the transition capacitance for a silicon diode when VD = 0? (Choose the best answer.)