Power Electronics A diac has ___________ semiconductor layers Three Four Two None of these Three Four Two None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor can termed as Both a and B. Square wave switch. AC switch. DC switch. Both a and B. Square wave switch. AC switch. DC switch. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will Turn on if pulse frequency us increased to two times. Not turn on. Turn on if inductance is removed. Turn on. Turn on if pulse frequency us increased to two times. Not turn on. Turn on if inductance is removed. Turn on. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is simply ___________. A three junction device A single junction device A triac without gate terminal None of these A three junction device A single junction device A triac without gate terminal None of these 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 145 μs. 130 μs. 140 μs. 135 μs. 145 μs. 130 μs. 140 μs. 135 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 90. 60. 80. 70. 90. 60. 80. 70. ANSWER DOWNLOAD EXAMIANS APP
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