Power Electronics The latching current of SCR is 20 mA. Its holding current will be 60 mA. 23 mA. 40 mA. 10 mA. 60 mA. 23 mA. 40 mA. 10 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 110 A. 100 A. 150 A. 120 A. 110 A. 100 A. 150 A. 120 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is ___________ switch None of these A d.c. An c. A mechanical None of these A d.c. An c. A mechanical ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. None of these High Extremely low Low None of these High Extremely low Low ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is 0.2. 0.75. 0.25. 0.7. 0.2. 0.75. 0.25. 0.7. 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. 1000 V/µs. 1200 V/µs. 800 V/µs. 600 V/µs. 1000 V/µs. 1200 V/µs. 800 V/µs. ANSWER DOWNLOAD EXAMIANS APP
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