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. resistors of different values across each SCR. one resistor across the string. one resistor in series with each SCR. resistors of the same value across each SCR. resistors of different values across each SCR. one resistor across the string. one resistor in series with each SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Delay time is defined by the interval when all of these. anode voltage drops from 100 % to 90 % of its actual value. gate current increases from 90 % to 100 % of its final value. anode current reaches 10 % from forward leakage current. all of these. anode voltage drops from 100 % to 90 % of its actual value. gate current increases from 90 % to 100 % of its final value. anode current reaches 10 % from forward leakage current. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After proper turn on of thyristor gate signal must be removed. gate signal is always present. gate signal should present but can be removed. None of these gate signal must be removed. gate signal is always present. gate signal should present but can be removed. None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. None of these Cut-off Negative resistance Saturation None of these Cut-off Negative resistance Saturation 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. Turn on if inductance is removed. Turn on if pulse frequency us increased to two times. Not turn on. Turn on. Turn on if inductance is removed. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Switching frequency of SITH is 5 KHz. 10 KHz. 60 KHz. 100 KHz. 5 KHz. 10 KHz. 60 KHz. 100 KHz. ANSWER DOWNLOAD EXAMIANS APP
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