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Questions:

1. In class A amplifier, the collector current flows in which part of the input signal cycle?
2. What material is typically used for heat sinks?
3. How does a cascade amplifier function?
4. What is the purpose of the source terminal in a field-effect transistor?
5. How is voltage applied for proper operation of an n-channel FET?
6. Why is the width of the depletion region more towards the drain in an FET?
7. What is the full form of MOSFET?
8. What is the characteristic curve of MOSFET similar to?
9. What components are present in an integrated circuit?
10. Where are linear ICs typically used?
11. How many terminals does an SCR device have?
12. What is the number of bases in a unijunction transistor?
13. What does the Wiedmann-Franz law state regarding the ratio of thermal and electrical conductivities?
14. What happens at room temperature in semiconductors?
15. What is the equation for diode current?
16. Which diode can be used in a relaxation oscillator and other applications?
17. What device is used as a temperature sensor in electronic thermometers?
18. What is the approximate thickness of the depletion layer in tunnel diodes?
19. Which IC voltage regulator is classified as negative?
20. How is the beta cutoff frequency related to alpha cutoff frequency in transistors?
21. What are the properties and design goals of heat sinks?
22. What is the purpose of 'current mirrors' in BJT biasing techniques?
23. What is the power rating calculation for class A power transistors?
24. What is the main advantage of integrated circuits?
25. How do you calculate AC drain resistance for a JFET?
26. What is phase reversal in electronics?
27. What types of components are used in feedback circuits?
28. What technique is ideally suited for fabricating linear ICs?
29. Which family does SCR belong to?
30. How is voltage Va calculated in an SCR rectifier?
31. What are the applications of UJT?
32. What statement is incorrect regarding phototransistors?
33. What type of transistor is 2N6027?
34. How is collector efficiency calculated for class A amplifiers?
35. What is the relation between alpha and beta cutoff frequencies?
36. What mixture is used to fabricate commercial thermistors?
37. How does the reverse saturation current in silicon junction change with temperature?
38. Which diode is used for detecting light signals?
39. What happens to the resistance in circuits with diodes under different configurations?
40. What material is used for producing red light in LEDs?
41. Who first developed tunnel diodes?
42. Which transistor configuration provides the highest power gain?
43. What is the relationship between base current and collector current in common emitter transistors?
44. What type of gain is associated with reverse voltage in transistors?
45. What is valley current in tunnel diodes?
46. What is the current amplification factor in common emitter configuration?
47. How is current gain calculated in common base transistor circuits?
48. What is the typical range for base spreading resistance in transistors?
49. Why does gain decrease at low frequencies in RC coupled amplifiers?
50. What configuration is unsuitable for cascading in amplifiers?
51. How is gain calculated in amplifiers with negative feedback?
52. What is the significance of bandwidth in amplifiers?
53. Which type of amplifier is most suitable for impedance matching?
54. What is created when covalent bonds break in semiconductors?
55. What are compound semiconductors?
56. At what voltage or temperature do different types of breakdowns occur in diodes?
57. What determines diode behavior in circuits with varying potentials?
58. How is a Zener diode typically used?
59. What is the relation between alpha and beta parameters in transistors?
60. What are the three main parameters in FET?
61. What is the change in decibel gain when amplifier power is halved?
62. What types of components are included in integrated circuits?
63. Where can the output of a UJT be taken from?
64. Where should light enter in phototransistors to generate electron-hole pairs?
65. How is critical wavelength calculated for photo conductors?
66. How is white light generated in LEDs?
67. What is the typical capacitance value for junction transitions?
68. What does Wiedmann-Franz law state?
69. Why is silicon preferred over germanium in semiconductors?
70. What is the significance of potential differences across barriers in semiconductors?
71. What wire materials are used for Cat's Whisker?
72. What causes visible displays in devices such as calculators?
73. What effect describes the decrease in base width with increasing reverse bias in transistors?
74. Which type of amplifier is analogous to common emitter configurations?
75. How is the efficiency of a power amplifier calculated?
76. What is the order of thickness for P-N junctions?
77. How is light detected using diodes?
78. What is the role of light intensity in phototransistors?
79. What is the behavior of SCRs in switching applications?
80. What is SMPS?
81. What is the reverse saturation current range for silicon?
82. What is the ability of power transistors to dissipate heat called?
83. How does a solar cell function?
84. What happens to the diffusion of holes in P-N junctions?
85. What is Ohmic contact?
86. What is the conductivity of intrinsic semiconductors at absolute zero?
87. What does 'P' denote in n-p-n transistors?
88. What is the current direction in p-n-p transistors?
89. How is emitter current calculated given base current and current gain?
90. What is electron lifetime?
91. What conditions are necessary for faithful amplification?
92. What is emitter bias also called?