Power Electronics Thermal voltage VT can be given by (K2/q)(T + 1/T - 1). KT/q. qT/K. Kq/T. (K2/q)(T + 1/T - 1). KT/q. qT/K. Kq/T. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Practical way of obtaining static voltage equalization in series connected SCRs is by the use of 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. resistors of the same value across each SCR. resistors of different values across each SCR. 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. Turn on if inductance is removed. Turn on. Not turn on. Turn on if pulse frequency us increased to two times. Turn on if inductance is removed. Turn on. Not turn on. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which semiconductor device acts like a diode and two transistor? Diac. Triac. SCR. UJT. Diac. Triac. SCR. UJT. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT has ___________. None of these Two pn junctions One pn junction Three pn junctions None of these Two pn junctions One pn junction Three pn junctions ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A 200 A thyristor is to be operated in parallel with a 300 A thyristor. The ON state voltage drops are 1.5 V and 1.2 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 500 A and each of them is fully loaded ? 0.03 ohm 0.3 ohm 3.0 ohm 0.3 ohm 0.03 ohm 0.3 ohm 3.0 ohm 0.3 ohm ANSWER DOWNLOAD EXAMIANS APP
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