Oscillators MCQs
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Oscillators MCQs
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25 Questions

1. An oscillator converts .................
2. The Q of the crystal is of the order of ............
3. .............. is a fixed frequency oscillator
4. Hartley oscillator is commonly used in ..................
5. An oscillator produces................ oscillations
6. The signal generator generally used in the laboratories is .............. oscillator
7. In Colpitt’s oscillator, feedback is obtained ................
8. In an LC oscillator, if the value of L is increased four times, the frequency of oscillations is ............
9. For an oscillator to properly start, the gain around the feedback loop must initially be
10. In an LC oscillator, the frequency of oscillator is ................ L or C.
11. If the crystal frequency changes with temperature, we say that crystal has .............. temperature coefficient
12. A second condition for oscillations is ...................
13. In a phase shift oscillator, the frequency determining elements are ............
14. One condition for oscillation is .............
15. An important limitation of a crystal oscillator is ...............
16. The piezoelectric effect in a crystal is ...............
17. An LC oscillator cannot be used to produce .................... frequencies
18. Quartz crystal is most commonly used in crystal oscillators because .............
19. In an LC circuit, when the capacitor is maximum, the inductor energy is ..........
20. An oscillator employs .................. feedback
21. In a Wien-bridge oscillator, if the resistances in the positive feedback circuit are decreased, the frequency..........
22. In a phase shift oscillator, we use ............. RC sections
23. In a certain oscillator Av = 50. The attention of the feedback circuit must be ............
24. An oscillator differs from an amplifier because it .........
25. In an LC transistor oscillator, the active device is ...............

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