Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant UJT None of these Transistor SCR UJT None of these Transistor SCR ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is ___________ switch A d.c. A mechanical An c. None of these A d.c. A mechanical An c. None of these 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 0.2. 0.7. 0.25. 0.75. 0.2. 0.7. 0.25. 0.75. ANSWER DOWNLOAD EXAMIANS APP
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 60° to 180°. 30° to 150°. 30° to 180°. 60° to 120°. 60° to 180°. 30° to 150°. 30° to 180°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Light triggering mainly used in all of these. medium voltage direct current transmission. low - voltage direct current transmission. high voltage direct current transmission. all of these. medium voltage direct current transmission. low - voltage direct current transmission. high voltage direct current transmission. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is disadvantage of fast recovery diodes? Recovery is only 5 µs. Doping is carried out. None of these. Recovery is only 50 µs. Recovery is only 5 µs. Doping is carried out. None of these. Recovery is only 50 µs. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS