1. What is the color
coding for 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
Thevenin’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. What is the
max. frequency signal we can measure from the CROs available in our lab?
53. What are the
different types of signals we can get from signal generator?
54. How do you
measure amplitude and frequency of any given signal in CRO?
