Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region Saturation Cut-off Negative resistance None of these Saturation Cut-off Negative resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Gate circuit or triggering circuit of a thyristor is high power circuit. magnetic circuit. may be low power or high power circuit. lower power circuit. high power circuit. magnetic circuit. may be low power or high power circuit. lower power circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is simply ___________. A triac without gate terminal A three junction device A single junction device None of these A triac without gate terminal A three junction device A single junction device None of these 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. 1000 V/µs. 1200 V/µs. 600 V/µs. 800 V/µs. 1000 V/µs. 1200 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. High Low Extremely low None of these High Low Extremely low None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To meet high current demand we use SCRs in both B and C. anti parallel connection. parallel connection. series connection. both B and C. anti parallel connection. parallel connection. series connection. ANSWER DOWNLOAD EXAMIANS APP
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