Power Electronics A diac is turned on by ___________. A breakover voltage Gate voltage Gate current None of these A breakover voltage Gate voltage Gate current None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics ON state voltage drop across SCR lie between the range 0.5 - 1 V. 1 - 1.5 V. 1.5 - 2 V. 0 - 0.5 V. 0.5 - 1 V. 1 - 1.5 V. 1.5 - 2 V. 0 - 0.5 V. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Power electronics essentially deals with control of a.c. power at ___________. Frequencies above 20 kHz Frequencies less than 10 Hz Frequencies above 1000 kHz 50 Hz frequency Frequencies above 20 kHz Frequencies less than 10 Hz Frequencies above 1000 kHz 50 Hz frequency ANSWER DOWNLOAD EXAMIANS APP
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. 150 µs. 200 µs. 100 µs. 300 µs. 150 µs. 200 µs. 100 µs. 300 µs. 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. 140 μs. 130 μs. 135 μs. 145 μs. 140 μs. 130 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time charge carrier of junction J2 recombined. charge carrier of junction J3 is swept out. charge carrier of junction J1 is swept out. both B and C. charge carrier of junction J2 recombined. charge carrier of junction J3 is swept out. charge carrier of junction J1 is swept out. both B and C. ANSWER DOWNLOAD EXAMIANS APP