Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. None of these Remains the same Decreases Increases None of these Remains the same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3 µs. 3.1 µs 3.2 µs 3.3 µs 3 µs. 3.1 µs 3.2 µs 3.3 µs ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? Breakdown of junction. Insulation failure. Local hot spot. None of these. Breakdown of junction. Insulation failure. Local hot spot. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The function of snubber circuit connected across the SCR is to decrease dV / dt. increase dV / dt. suppress dV / dt. decrease di / dt. decrease dV / dt. increase dV / dt. suppress dV / dt. decrease di / dt. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics An SCR is considered to be a semi controlled device because it conducts only during one half cycle of an alternating current wave. it can be turned ON but not OFF with a gate pulse. it can be turned OFF but not ON with a gate pulse. it can be turned ON only during one half cycle of an AC. it conducts only during one half cycle of an alternating current wave. it can be turned ON but not OFF with a gate pulse. it can be turned OFF but not ON with a gate pulse. it can be turned ON only during one half cycle of an AC. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. In inverse-parallel In parallel None of these In series In inverse-parallel In parallel None of these In series ANSWER DOWNLOAD EXAMIANS APP
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