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 1000 kHz Frequencies above 20 kHz Frequencies less than 10 Hz 50 Hz frequency Frequencies above 1000 kHz Frequencies above 20 kHz Frequencies less than 10 Hz 50 Hz frequency ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying None of these. Positive source signal. Positive gate signal. Positive drain signal. None of these. Positive source signal. Positive gate signal. Positive drain signal. 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 ? Fast acting current limiting device (FACL fuse). Voltage clamping device. Snubber circuit. CB. Fast acting current limiting device (FACL fuse). Voltage clamping device. Snubber circuit. CB. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is 0.45. 0.27. 0.67. 0.32. 0.45. 0.27. 0.67. 0.32. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT is sometimes called ___________ diode. High resistance Low resistance Single-base Double-base High resistance Low resistance Single-base Double-base ANSWER DOWNLOAD EXAMIANS APP
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