61. A voltage source inverter is normally employed when
62. Identify the given symbol.
63. The characteristic of UJT shown in Figure exhibits η = 0.5, VV = 1 V, IV = 10 mA, IP = 20 µA and VP = 14 V. The value of R1 that will ensure proper turn on and turn off must be
64. In a GTO, anode current begins to fall when gate current
65. The output voltage waveform of a three phase square wave inverter contains
66. In an SCR circuit, the angle of conduction can be changed by . . . . . . . .
67. Which type of protection is provided for SCR by connecting the snubber circuit across it?
68. After firing an SCR, the gating pulse is removed. Then the current in the SCR will
69. In order to obtain static voltage equalization in series connected SCRs, connections are made of
70. When a thyristor and transistor as a switch are compared, true statement is
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