electronic-devices-semiconductor-diodes Related Question Answers

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.)





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