Power Electronics A UJT has ___________. Two pn junctions One pn junction None of these Three pn junctions Two pn junctions One pn junction None of these Three pn junctions ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The function of snubber circuit connected across the SCR is to decrease di / dt. decrease dV / dt. suppress dV / dt. increase dV / dt. decrease di / dt. decrease dV / dt. suppress dV / dt. increase dV / dt. 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 80. 70. 60. 90. 80. 70. 60. 90. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying Positive gate signal. None of these. Positive source signal. Positive drain signal. Positive gate signal. None of these. Positive source signal. Positive drain signal. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The latching current of GTO should be of order 500 mA. 1 A. 2 A. 100 mA. 500 mA. 1 A. 2 A. 100 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 600 V/µs. 800 V/µs. 1200 V/µs. 1000 V/µs. 600 V/µs. 800 V/µs. 1200 V/µs. 1000 V/µs. ANSWER DOWNLOAD EXAMIANS APP
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