Power Electronics Which of the following is not a characteristic of UJT? Negative resistance Bilateral conduction Peak-point voltage Intrinsic stand off ratio Negative resistance Bilateral conduction Peak-point voltage Intrinsic stand off ratio 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 OFF but not ON with a gate pulse. it can be turned ON but not OFF 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 OFF but not ON with a gate pulse. it can be turned ON but not OFF with a gate pulse. it can be turned ON only during one half cycle of an AC. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics By which one of the following we can measure the reliability of a string? Derating factor. String efficient. Reliability factor. Factor of safety. Derating factor. String efficient. Reliability factor. Factor of safety. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is disadvantage of fast recovery diodes? Recovery is only 50 µs. Doping is carried out. Recovery is only 5 µs. None of these. Recovery is only 50 µs. Doping is carried out. Recovery is only 5 µs. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is < latching current but greater than holding current and gate signal is 0. both (A) and (B). < latching current but greater than holding current and gate signal is present. less than holding current. < latching current but greater than holding current and gate signal is 0. both (A) and (B). < latching current but greater than holding current and gate signal is present. less than holding current. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Leakage current flows through the thyristor in forward conduction mode. forward blocking mode. both forward and reverse blocking mode. reverse blocking mode. forward conduction mode. forward blocking mode. both forward and reverse blocking mode. reverse blocking mode. ANSWER DOWNLOAD EXAMIANS APP