51. In a circuit containing a transistor, both of its junctions are forward biased. It operatesin----------- region.
52. If only 5 bites are used for addressing the memory of a computer system the memory size is:
53. The ripple factor and efficiency of a half wave rectifier are respectively
54. For a short transmission with series impedance Z,all the capacitances being negligibly small the ABCD constants of the line are :
55. The Opposition to the flow of current in a conductor can increase in ‘alternating circuits compared to dc circuits due to:
56. The load flow analysis algorithm having the least rate of convergence is
57. Under ground cables are less preferable in high voltage transmission because of:
58. The metals normally used in a IIRC fuse are :
59. The transient stability of a power system can be improved by :
60. For economic load dispatch :
61. In a power system, the cost of generated electrical enegry will be low if:
62. An over exited synchronous machine has a lagging powerfactor. The machine is :
63. In class B operation of power amplifiers, the collector current flows for:
64. For the characteristic equation 2S1 +S3 +3S2 +5s + 10 = 0, the number of roots in the left half S plane is :
65. The unity negative feedback system with GH(S)= (10s+1)/ (s2+8as+4k) oscillates at 2rad/s only when:
66. The steady state error of a negative feedback system with forward path gain function(5/(s+1and feedback path gain function H(S)=(5/(S+1)for a unit step input iS given by:
67. The ratio of total power in the Amplitude modulated wave to the unmodulated carrier power when the modulation index is 'm'
68. The voltage across a load element is 40<-15 and the current through .the element is 2.5Z <-30. The circuit powerfactor is:
69. 100 numbers of 1Ω linear bilateral resistances are connected in parallel and the combination is fed by a 10A constant current source. The power delivered by the source is :
70. Referring to a power plant, the term hot reserve refers to:
71. Power supply used for dielectric heating will normally have a frequency in the range :
72. As per Kelvin's Law, the most economical size of conductor is that for which :
73. Output voltage of a simple ideal buck type dc-dc converter working in continuous current mode with an input voltage of 12V and turn ON time 5ms and switching frequency 50Hz is :
74. A power electronic circuit which can give a 2.5V, 30Hz output wave from a supply of 5V, 60Hz supply is :
75. In a power electronic circuit, a free wheeling diode is used across a dc load to:
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