Power Electronics To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage. None of these More than Equal to Less than None of these More than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. Like a bidirectional SCR None of these A four-terminal device Not a thyristor Like a bidirectional SCR None of these A four-terminal device Not a thyristor ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The typical value of SCR for modern alternator is 0.5. 1.2. 1.0. 1.5. 0.5. 1.2. 1.0. 1.5. 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 ? Voltage clamping device. CB. Snubber circuit. Fast acting current limiting device (FACL fuse). Voltage clamping device. CB. Snubber circuit. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is disadvantage of fast recovery diodes? 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. Recovery is only 5 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Under normal operating condition voltage clamping device offers impedance of zero value. moderate value. low value. high value. zero value. moderate value. low value. high value. ANSWER DOWNLOAD EXAMIANS APP
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