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Old January 31st, 2018, 12:45 PM
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Default Viva Questions For AEC Lab VTU

I want to know the sample Viva questions of Analog Electronic Circuits AEC Lab 3rd semester of Visvesvaraya Technological University VTU so can you provide me?
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  #2  
Old January 31st, 2018, 12:46 PM
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Join Date: Mar 2012
Default Re: Viva Questions For AEC Lab VTU

Ok, I am telling you the sample Viva questions of Analog Electronic Circuits AEC Lab 3rd semester of Visvesvaraya Technological University VTU

VTU Analog Electronic Circuits Lab Viva questions

VIVA QUESTIONS:


1. What are the ideal Characteristics of an OP-AMP ?

2. Explain the concept of virtual ground?

3. What are the internal stages in an OP-AMP IC ?

4. What type of transistor Configuration is used at the front end of an OP-AMP IC ?

5. Draw the circuit diagram of an integrator and a differentiator using an OP-AMP ?

6. Why square wave is used to test any amplifier ?

More questions-

1. What is the colour coding for 10k, 47k, and 220k?
2. Explain the difference between coupling capacitor and bypass capacitor.
3. What is biasing of transistor? Name them.4. What is voltage divider type of biasing?
5. What do we understand from frequency response of an amplifier?
6. Why gain bandwidth product is same with and without feedback?
7. What is input impedance? Output impedance?
8. Why i/p impedance should be high and o/p impedance should be low for a good amplifier?
9. What do you understand from SL100 transistor?
10. What is gain of an amplifier?
11. What is the voltage gain of voltage follower / common collector amplifier?
12. What is band width?
13. Why we operate a transistor amplifier in mid band region?14. What is 3db line in frequency response?
15. What is emitter follower?
16. What is the current gain in C.B. Amplifier?
17. What is Voltage gain and current gain in emitter follower?
18. What type of feedback is used in case of oscillators?
19. Which part of the Hartley oscillator decides frequency of oscillations? What is the frequency ?
20. Which type of oscillator is highly stable? Why others are not stable?
21. What do you understand by crystal used in crystal oscillator?
22. What is piezoelectric effect?23. What are the differences between BJT and FET?
24. Which is the type of FET you are using in the Lab?
25. How do you find out input and output of any amplifier?26. Why do you connect DRB in series for Ri and in parallel for Ro?27. What is resonance frequency?
28. At resonant frequency why the total impedance of the circuit is resistive?
29. What is the frequency for fs and fp?30. What is Q- factor as applied to resonance circuit? What should be ideal value of Q- factor?
31. What is efficiency of half wave rectifier, full wave rectifier and bridge rectifier?
32. What is ripple of H.W., F.W., and Bridge rectifier?
33. What is ripple factor?
34. What is rms value of voltage / current?35. How we can reduce ripple (factor)?
36. What are the advantages of bridge rectifier over F.W.R?
37. What is regulation?38. Explain Thevini’s and max Power transform theorem.
39. When actually the max. Power gets transferred to the load?40. What are the advantages of negative feedback?
41. What are the disadvantages of negative feedback?
42. In RC phase shift oscillator each of 3 stages of RC provides what angle of phase shift?43.What is the difference between diodes DY127 and IN4002?
44. What is the difference b/w rheostat and potentiometer and trimpot?45. What is clipping and what is clampng?
46. In case of clamper the output waveform will be different from i/p waveform or not?
47. What is positive and negative clamping?
48. Whether H.R.W. is it a clipper?49. How do you design tank circuits of oscillator?
50. How do you design voltage divider type of biasing types of amplifiers?
51. What is the difference b/w power supply and signal generator?
52. If you vary the time base of any CRO will the frequency changes?
53. What is the max. frequency signal we can measure from the CROs available in our lab?
54. What are the different types of signal we can get from signal generator.
55. How do you measure amplitude and frequency of any given signal in CRO?

Contact-

Visvesvaraya Technological University
Jnana Sangama, Machhe, Belagavi, Karnataka 590018
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