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. 300 µs. 150 µs. 200 µs. 100 µs. 300 µs. 150 µs. 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. R and C in series but with diode across C. series R and diode with C across R. series R and diode with C across R. R and C in series but with diode across R. R and C in series but with diode across C. series R and diode with C across R. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Inversely proportional to supply voltage. Directly proportional to supply voltage. Both A and B. Directly proportional to inductance in the circuit. Inversely proportional to supply voltage. Directly proportional to supply voltage. Both A and B. Directly proportional to inductance in the circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is simply ___________. A triac without gate terminal None of these A three junction device A single junction device A triac without gate terminal None of these A three junction device A single junction device ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is turned on by ___________. Gate voltage A breakover voltage None of these Gate current Gate voltage A breakover voltage None of these Gate current ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac has ___________ semiconductor layers. Four Five Three Two Four Five Three Two ANSWER DOWNLOAD EXAMIANS APP
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