Below are the answers key for the 100 items set of Practice Examination 5 in Electronics Engineering composed of previous Board Exams Questions and cautiously selected questions from various topics in Electronics Engineering that could possibly be given in the board.
1. atom
2. 5
3. Protons, electrons, and nucleus
4. It is made up of protons and neutrons.
5. 14
6. 32
7. M
8. In the most distant orbit from the nucleus
9. When a valence electron breaks away from the atom
10. When an atom gains an extra valence electron
11. Silicon
12. Conduction band
13. By thermal energy
14. recombination
15. All of the choices
16. eight valence electrons, four of its own and four shared
17. By both electrons and holes
18. Both A and B above
19. All of the choices
20. Doping
21. Trivalent
22. To increase number of free electrons
23. Conduction electrons
24. Minority carriers that are thermally produced
25. By the boundary of p-type and n-type material
26. All of the choices
27. Positive and negative ions
28. The dc voltage applied to control the operation of the devices
29. Either A and B above
30. The current is produced by both holes and electrons
31. Minority carriers
32. Greater than 0.7 V
33. When forward-biased
34. The diode barrier potential
35. forward-biased
36. Equal to the average value of the rectified voltage
37. increases
38. A half-wave rectified voltage
39. voltage but not for current
40. more positive than the anode
41. The changes in the output voltage and input voltage
42. The changes in load current and output voltage
43. Both A and C
44. 81.2%
45. twice
46. one-half
47. 40.6%
48. Center-tap
49. 100 Hz
50. Four
51. higher
52. Bridge type
53. Capacitor input
54. Electrolytic
55. 50 Hz
56. more than
57. more
58. Impedance matching
59. 10
60. 2
61. 1 V/μs
62. ± 5%
63. 64
64. 6
65. 3
66. 2
67. 6
68. Dynatron effect
69. Singing-stovepipe effect
70. Compton effect
71. Debye-Sears effect
72. Photoelectromagnetic effect
73. The number of protons in the nucleus
74. Ted Nelson
75. Larry Roberts
76. Norio Taniguchi
77. Plasmons
78. Bob Metcalfe
79. Douglas Engelbart
80. Marc Andreesen
81. Tim Berners-Lee
82. Both Vinton Cerf and Bob Khan
83. Tim Berners-Lee
84. Channel effect
85. Damon effect
86. Edge effect
87. Fringe effect
88. Zener effect
89. Thomson effect
90. Tunnel effect
91. Photovoltaic effect
92. Miller effect
93. Hall effect
94. Leduc effect
95. Flywheel effect
96. Dember effect
97. Bequerel effect
98. Island effect
99. Malter effect
100. motor effect
What’s next in line?
Complete List of Electronics Engineering Exams: ECE Pre-Board
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