Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Decreases Remains the same None of these Increases Decreases Remains the same None of these Increases 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? 800 V/µs. 1200 V/µs. 1000 V/µs. 600 V/µs. 800 V/µs. 1200 V/µs. 1000 V/µs. 600 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in SCR to protect from high dV / dt? Equalizing circuit. Fuse. Snubber circuit. Circuit breaker. Equalizing circuit. Fuse. Snubber circuit. Circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Anode current in an SCR consists of holes only. electrons only. either electron or holes. Both electron and holes. holes only. electrons only. either electron or holes. Both electron and holes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If the anode current is 800 A, then the amount of current required to turn off the GTO is about 400 A. 20 A. 600 A. 200 A. 400 A. 20 A. 600 A. 200 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Rise time is defined by the interval when gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. ANSWER DOWNLOAD EXAMIANS APP
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