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Semiconductor Diode MCQs
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Avg score: 33% • Most missed: “In the breakdown region, a zener didoe behaves like a ............... source.”
Semiconductor Diode MCQs
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25 Questions

1. A crystal diode is a ............... device
2. The doping level in a zener diode is ............... that of a crystal diode
3. If the PIV rating of a diode is exceeded, ..................
4. For the same secondary voltage, the output voltage from a centre-tap rectifier is ............ than that of bridge rectifier
5. The forward voltage drop across a silicon diode is about .....................
6. The ripple factor of a half-wave rectifier is .....................
7. A zener diode has ...........
8. If the temperature of a crystal diode increases, then leakage current ...........
9. A zener diode has .............. breakdown voltage
10. A crystal diode is used as ...............
11. A zener diode is ...................... device
12. The disadvantage of a half-wave rectifier is that the...................
13. The d.c. resistance of a crystal diode is .............. its a.c. resistance
14. A zener diode is used as ................
15. The ratio of reverse resistance and forward resistance of a germanium crystal diode is about .............
16. The most widely used rectifier is ...................
17. If the doping level of a crystal diode is increased, the breakdown voltage.............
18. The PIV rating of a crystal diode is .............. that of equivalent vacuum diode
19. The reverse current in a diode is of the order of ...................
20. A zener diode is always ............ connected.
21. When a crystal diode is used as a rectifier, the most important consideration is ...........
22. ................ rectifier has the lowest forward resistance
23. If the doping level in a crystal diode is increased, the width of depletion layer...........
24. When the crystal current diode current is large, the bias is ............
25. There is a need of transformer for ....................

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