Power Electronics A diac has ___________ pn junctions Three Two None of these Four Three Two None of these Four ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCRs are used in series to meet high voltage demand. high current demand. low voltage demand. low current demand. high voltage demand. high current demand. low voltage demand. low current demand. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Decreases Increases Remains the same None of these Decreases Increases Remains the same None of these 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). CB. Voltage clamping device. Snubber circuit. Fast acting current limiting device (FACL fuse). CB. Voltage clamping device. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. Cut-off Saturation Negative resistance None of these Cut-off Saturation Negative resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? None of these. Local hot spot. Insulation failure. Breakdown of junction. None of these. Local hot spot. Insulation failure. Breakdown of junction. ANSWER DOWNLOAD EXAMIANS APP