Power Electronics Power electronics essentially deals with control of a.c. power at ___________. Frequencies above 20 kHz Frequencies above 1000 kHz 50 Hz frequency Frequencies less than 10 Hz Frequencies above 20 kHz Frequencies above 1000 kHz 50 Hz frequency Frequencies less than 10 Hz ANSWER DOWNLOAD EXAMIANS APP
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 None of these SCR Transistor UJT None of these SCR Transistor UJT ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Snubber circuit is used with SCR in series. anti parallel. either series or parallel. in parallel. in series. anti parallel. either series or parallel. in parallel. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A Triac has three terminals viz ___________ Cathode, anode, gate Drain, source, gate None of these Two main terminal and a gate terminal Cathode, anode, gate Drain, source, gate None of these Two main terminal and a gate terminal ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ terminals. None of these Four Two Three None of these Four Two Three ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ? CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
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