Power Electronics A triac is a ___________ switch Bidirectional Mechanical Unidirectional None of these Bidirectional Mechanical Unidirectional None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Power electronics essentially deals with control of a.c. power at ___________. Frequencies above 20 kHz 50 Hz frequency Frequencies above 1000 kHz Frequencies less than 10 Hz Frequencies above 20 kHz 50 Hz frequency Frequencies above 1000 kHz Frequencies less than 10 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 100 µs. 200 µs. 300 µs. 150 µs. 100 µs. 200 µs. 300 µs. 150 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT has ___________. One pn junction Three pn junctions None of these Two pn junctions One pn junction Three pn junctions None of these Two pn junctions 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 The latching current of SCR is 20 mA. Its holding current will be 23 mA. 10 mA. 60 mA. 40 mA. 23 mA. 10 mA. 60 mA. 40 mA. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS