Power Electronics CB used for over current protection of thyristor operates when the fault current is of short duration. neither (A) nor (B). both (A) and (B). of long period. of short duration. neither (A) nor (B). both (A) and (B). of long period. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3.3 µs 3.2 µs 3 µs. 3.1 µs 3.3 µs 3.2 µs 3 µs. 3.1 µs ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The UJT may be used as ___________. Am amplifier None of these A sawtooth generator A rectifier Am amplifier None of these A sawtooth generator A rectifier ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is 83.3 %. 91.6 %. 76.3 %. 90.9 %. 83.3 %. 91.6 %. 76.3 %. 90.9 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions Four Two Three None of these Four Two Three None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is normally ON device SIT. TRIAC. IGBT. BJT. SIT. TRIAC. IGBT. BJT. ANSWER DOWNLOAD EXAMIANS APP
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