Power Electronics A triac is a ___________ switch Bidirectional Mechanical None of these Unidirectional Bidirectional Mechanical None of these Unidirectional ANSWER DOWNLOAD EXAMIANS APP
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 A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is 3.714. 37.14. 60. 65. 3.714. 37.14. 60. 65. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time charge carrier of junction J2 recombined. charge carrier of junction J3 is swept out. charge carrier of junction J1 is swept out. both B and C. charge carrier of junction J2 recombined. charge carrier of junction J3 is swept out. charge carrier of junction J1 is swept out. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. Only negative None of these Both positive and negative Only positive Only negative None of these Both positive and negative Only positive ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which semiconductor device acts like a diode and two transistor? UJT. SCR. Triac. Diac. UJT. SCR. Triac. Diac. ANSWER DOWNLOAD EXAMIANS APP
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