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 30° to 180°. 60° to 120°. 60° to 180°. 30° to 150°. 30° to 180°. 60° to 120°. 60° to 180°. 30° to 150°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions None of these Three Four Two None of these Three Four Two ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Unidirectional None of these Mechanical Bidirectional Unidirectional None of these Mechanical Bidirectional ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is turned on by ___________. None of these Gate voltage Gate current A breakover voltage None of these Gate voltage Gate current A breakover voltage ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After proper turn on of thyristor gate signal should present but can be removed. gate signal must be removed. None of these gate signal is always present. gate signal should present but can be removed. gate signal must be removed. None of these gate signal is always present. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics By which one of the following we can measure the reliability of a string? Derating factor. Factor of safety. String efficient. Reliability factor. Derating factor. Factor of safety. String efficient. Reliability factor. ANSWER DOWNLOAD EXAMIANS APP
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