Power Electronics After peak point, the UJT operates in the ___________ region. Negative resistance Cut-off Saturation None of these Negative resistance Cut-off Saturation None of these ANSWER DOWNLOAD EXAMIANS APP
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 Which of the following is used in SCR to protect from high dV / dt? Fuse. Equalizing circuit. Snubber circuit. Circuit breaker. Fuse. Equalizing circuit. Snubber circuit. Circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCRs are used in series to meet high current demand. low voltage demand. high voltage demand. low current demand. high current demand. low voltage demand. high voltage demand. low current demand. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? None of these. Insulation failure. Breakdown of junction. Local hot spot. None of these. Insulation failure. Breakdown of junction. Local hot spot. 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. 600 V/µs. 1200 V/µs. 1000 V/µs. 800 V/µs. 600 V/µs. 1200 V/µs. 1000 V/µs. ANSWER DOWNLOAD EXAMIANS APP
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