Power Electronics Which semiconductor device acts like a diode and two transistor? UJT. Diac. Triac. SCR. UJT. Diac. Triac. SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A Triac has three terminals viz ___________ Drain, source, gate None of these Two main terminal and a gate terminal Cathode, anode, gate Drain, source, gate None of these Two main terminal and a gate terminal Cathode, anode, gate ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Anode current in an SCR consists of either electron or holes. holes only. Both electron and holes. electrons only. either electron or holes. holes only. Both electron and holes. electrons only. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics An SCR is considered to be a semi controlled device because it can be turned OFF but not ON with a gate pulse. it conducts only during one half cycle of an alternating current wave. it can be turned ON only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. it can be turned OFF but not ON with a gate pulse. it conducts only during one half cycle of an alternating current wave. it can be turned ON only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Let of a thyristor Vc1, Vc2, Vc3 are forward break over voltage for gate current Ig1, Ig2, Ig3 respectively. Then Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Typical range of thyristor turn OFF time is 3 - 10 µs. 3 - 100 µs. 3 - 500 µs. 3 - 50 µs. 3 - 10 µs. 3 - 100 µs. 3 - 500 µs. 3 - 50 µs. ANSWER DOWNLOAD EXAMIANS APP
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