Power Electronics Anode current in an SCR consists of Both electron and holes. electrons only. holes only. either electron or holes. Both electron and holes. electrons only. holes only. either electron or holes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCRs are used in series to meet low voltage demand. high current demand. low current demand. high voltage demand. low voltage demand. high current demand. low current demand. high voltage demand. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What may happen high dV / dt? Both A and B. Unwanted turn ON. Anyone of these. Breakdown of J2 junction. Both A and B. Unwanted turn ON. Anyone of these. Breakdown of J2 junction. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum di / dt in a SCR is inversely proportional to L in the circuit. inversely proportional to Vm of supply voltage. directly proportional to Vm of supply voltage. both A and C. inversely proportional to L in the circuit. inversely proportional to Vm of supply voltage. directly proportional to Vm of supply voltage. both A and C. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is 135 μs. 145 μs. 130 μs. 140 μs. 135 μs. 145 μs. 130 μs. 140 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Practical way of obtaining static voltage equalization in series connected SCRs is by the use of resistors of the same value across each SCR. one resistor in series with each SCR. one resistor across the string. resistors of different values across each SCR. resistors of the same value across each SCR. one resistor in series with each SCR. one resistor across the string. resistors of different values across each SCR. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS