Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 200 µs. 100 µs. 150 µs. 300 µs. 200 µs. 100 µs. 150 µs. 300 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Under over voltage condition impedance offered by the voltage clamping device is high. low. infinity. moderate. high. low. infinity. moderate. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For series connected SCR’s dynamic equalising circuit consists of series R and diode with C across R. R and C in series but with diode across R. series R and diode with C across R. R and C in series but with diode across C. series R and diode with C across R. R and C in series but with diode across R. series R and diode with C across R. R and C in series but with diode across C. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT has ___________. None of these Three pn junctions One pn junction Two pn junctions None of these Three pn junctions One pn junction Two pn junctions ANSWER DOWNLOAD EXAMIANS APP
Power Electronics An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be 2121.32 A. 4242.64 A. 1500 A. 6000 A. 2121.32 A. 4242.64 A. 1500 A. 6000 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase full bridge inverter can operated in load commutation mode in case load consist of RLC underdamped. RLC overdamped. RL. RLC critically damped. RLC underdamped. RLC overdamped. RL. RLC critically damped. ANSWER DOWNLOAD EXAMIANS APP
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