Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 30° to 180°. 60° to 180°. 60° to 120°. 30° to 150°. 30° to 180°. 60° to 180°. 60° to 120°. 30° to 150°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is 0.25. 0.75. 0.7. 0.2. 0.25. 0.75. 0.7. 0.2. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A power MOSFET has three terminals called Collector, emitter and base. Collector, emitter and gate. Drain, source and gate. Drain, source and base. Collector, emitter and base. Collector, emitter and gate. Drain, source and gate. Drain, source and base. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Practical way of obtaining static voltage equalization in series connected SCRs is by the use of resistors of the same value across each SCR. resistors of different values across each SCR. one resistor in series with each SCR. one resistor across the string. resistors of the same value across each SCR. resistors of different values across each SCR. one resistor in series with each SCR. one resistor across the string. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. In series In inverse-parallel In parallel None of these In series In inverse-parallel In parallel None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions Three Four Two None of these Three Four Two None of these ANSWER DOWNLOAD EXAMIANS APP
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