Power Electronics The latching current of SCR is 20 mA. Its holding current will be 10 mA. 60 mA. 40 mA. 23 mA. 10 mA. 60 mA. 40 mA. 23 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Anode current in an SCR consists of electrons only. Both electron and holes. holes only. either electron or holes. electrons only. Both electron and holes. holes only. either electron or holes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. Saturation None of these Negative resistance Cut-off Saturation None of these Negative resistance Cut-off ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. None of these Like a bidirectional SCR A four-terminal device Not a thyristor None of these Like a bidirectional SCR A four-terminal device Not a thyristor 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. 300 µs. 200 µs. 100 µs. 150 µs. 300 µs. 200 µs. 100 µs. 150 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 60° to 120°. 30° to 180°. 60° to 180°. 30° to 150°. 60° to 120°. 30° to 180°. 60° to 180°. 30° to 150°. ANSWER DOWNLOAD EXAMIANS APP
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