A. Gausses Law
B. Faraday’s law
C. Newton law
D. All of the above
52. Three terminals of thyrister (Gate Anode Cathode)
53. Which is not type of power diode?
A. General purpose
B. Schotky
C. High speed
D. low speed
54. In standards definition of electronics the relation between Vo and Vbr is.
A. vo < vbr
B. vo > Vbr
C. vo=vbr
D. none
55. Full wave center-tapped rectification, diode arrangements (Anti-Parallel)
56. Multi-phase rectifier increase ———– and decrease ——— (DC & Harmonics)
57. Which of the following does not change in a transformer? Frequency
58. Which loss equal if no load input power is provided to transformer?
A. Copper
B. Hysteresis
C. Eddy Current
D. Iron Losses
59. Zener Diode is used in power supply for
A. maintaining output voltage
B. for maintaining input voltage
60. Commercial source of energy
A. Fossil Fuels, Thermal, Hydro
B. Wind, Solar, Tidal
C. Biomass
D. Both A & B
61. Solar thermal power can be achieved by ?
62. At no load Power factor change Vco
63. VI Characteristics of UJT is?
A. Similar to CE with a linear and saturation region.
B. Similar to FET with a linear and pinch off region.
C. Similar to tunnel diode in some respects.
D. Similar to PN junction diode to some respects.
64. Force between two magnetic poles placed in a medium is?
A. Directly proportion to their poles strength
B. Inversely proportion to their pole strength
C. Equal to their pole strength
D. None of the above
65. Name device used for measuring magnetic flux?
A. Ammeter
B. Ohmmeter
C. Flux meter
D. None of the above
66. Registers containing 6-switches can store ————– binary No?
A. 16
B. 64
C. 32
D. 128
67. ———— is maximum when RLC circuit is resonance
A. Power dissipation
B. Inductive current
C. Capacitive voltage
D. None of the above
68. A device has same polarity in either direction is
A. active
B. passive
C. bilateral
D. none of these
69. Which device give output without input?
A. amplifier
B. filter
C. oscillator
D. none
70. To make boost converter, Chopper must be used in
A. 1st Quadrant
B. 2nd Quadrant
C. 3rd Quadrant
D. 4th Quadrant
71. Line commutation related to Thyristor rectifier
A. Diode Rectifier
B. Thyristor Rectifier
C.
D. Triac Rectifier
72. Multiplexer definition
73. De Multiplexer Definition
74. Charged capacitor acts as
A. Voltage source
B. Current Source
75. Carrier power of radio transmitter is (Ans = 30kw)
76. Power Factor problem KW & V I given (Ans = 0.7)
77. Net reactance is ………………when RLC is at resonance.
A. Zero
B. Infinity
C. Greater than zero
D. Less than zero
78. The region of operation of transistor is ………….. if Emitter junction is forward biased and collector junction is reverse biased.
A. Active region
B. Saturation region
C. Inverted
D. None of these.
79. LVDT is a/an …………………… device.
A. Mechanical
B. Electromechanical
C. Electrical
D. Thermal
80. The Graphical difference in between nFET and pFET:
A. Inversion in bubble of drain
B. Inversion in bubble of source
C. Inversion in bubble of gate D. All of above