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 150°. 60° to 180°. 60° to 120°. 30° to 180°. 30° to 150°. 60° to 180°. 60° to 120°. 30° to 180°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Unidirectional None of these Bidirectional Mechanical Unidirectional None of these Bidirectional Mechanical ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To meet high current demand we use SCRs in parallel connection. both B and C. series connection. anti parallel connection. parallel connection. both B and C. series connection. anti parallel connection. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability Semi conductor diodes. Thyristor. MOSFETs. TRIACs. Semi conductor diodes. Thyristor. MOSFETs. TRIACs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying Positive source signal. Positive drain signal. Positive gate signal. None of these. Positive source signal. Positive drain signal. Positive gate signal. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Calculate the maximum voltage that can be safely blocked by the string shown in figure, if maximum allowable leakage current is 2 mA? 2 KV. 8 KV. 6 KV. 10 KV. 2 KV. 8 KV. 6 KV. 10 KV. ANSWER DOWNLOAD EXAMIANS APP
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