Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Remains the same None of these Decreases Increases Remains the same None of these Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect a thyristor from high di / dt conditions? Voltage clamping device. Fuse. Inductor. Snubber circuit. Voltage clamping device. Fuse. Inductor. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 90. 80. 60. 70. 90. 80. 60. 70. 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 only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. 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 only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Dynamic equalising circuit is useful to limit di / dt of SCR. both B and C. for voltage equalisation. to limit dV / dt of SCR. to limit di / dt of SCR. both B and C. for voltage equalisation. to limit dV / dt of SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying Positive gate signal. Positive source signal. None of these. Positive drain signal. Positive gate signal. Positive source signal. None of these. Positive drain signal. ANSWER DOWNLOAD EXAMIANS APP
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