Following are some of the multiple choice questions on the Analog Electronics with answers that will help the students in developing their knowledge.
Analog Electronics MCQ
1. Which of the following statements is false?
2. Negative feedback in an amplifier
3. A hole in a semiconductor is defined as
5. MOSFET can be used as a
6. What is an energy gap?
7. The diode current equation is not applicable in ____________
8. In an OP-amp differentiator
10. The current gain of a bipolar transistor drops at high frequencies because of
11. Which of the following oscillators is suitable for frequencies in the range of mega hertz?
12. Thermal runaway is not possible in FET because as the temperature of FET increases
13. In a transistor leakage current mainly depends on
14. The cascade amplifier is a multistage configuration of
15. What will happen if doping of an intrinsic semiconductor with pentavalent impurity atom ?
16. The early effect in a bipolar junction transistor is caused by
17. The current gain of a BJT is
18. In a CE amplifier the input impedance is equal to the ratio of
19. A change in the value of the emitter resistance Re in a differential amplifier
20. In a CB amplifier the maximum efficiency could be
21. In a half wave rectifier, the input sine wave is 250sin100 ᴨt Volts. The output ripple frequency of rectifier will be __________
22. A 10 V power supply would use which filter capacitor?
23. An RC oscillator uses
24. Which power amplifier can deliver maximum load power?
25. In a common emitter, unbypassed resister provides
26. Colpitts oscillator consists of _____ capacitor and _______ inductor
27. The abbreviation PIV in the case of a diode stands for ____________
28. The bandwidth of an RF tuned amplifier is dependent on
29. An exponential amplifier has diode in feedback path.
30. The threshold voltage of a diode at Antarctica and India were found to be V1 and V2 respectively. Which of the following relations between V1 and V2 hold good?
31. To protect the diodes in a rectifier and capacitor input filter circuit it is necessary to use
32. Reverse collector saturation current ICBO is __________
33. The coupling capacitor in amplifier circuits
34. The effective channel length of a MOSFET in a saturation decreases with increase in
35. For high frequencies a capacitor like
36. Which of the following power amplifiers has highest efficiency?
37. The input voltage for starting oscillations in an oscillator is caused by
38. In a push pull circuit
39. In a half wave diode rectifier circuit the current flows in the load circuit for
40. How is BJT used as a faster switch?
41. The encapsulation of transistor is necessary for
42. What is the condition if no external potential energy is applied to the PN junction then diode ?
43. A buffer amplifier should have
44. The units of transistor h parameters h11 and h22 are
45. Whenever load is coupled class A amplifier through transformer efficiency
46. In a CE amplifier drives a low load resistance directly the result will be
47. The ideal characteristics of a stabilizer is
48. The dissipation at the collector is in the quiescent state and increases with excitation in the case of a
49. In an amplifier the voltage gain is the ratio of
50. The value of parameter re used in re transistor model
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