Power Electronics What is used to protect the SCR from over current ? Snubber circuit. Voltage clamping device. CB and fuse. Heat sink. Snubber circuit. Voltage clamping device. CB and fuse. Heat sink. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The device that exhibits negative resistance region is ___________. UJT Transistor Diac Triac UJT Transistor Diac Triac 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 30° to 180°. 30° to 150°. 60° to 180°. 60° to 120°. 30° to 180°. 30° to 150°. 60° to 180°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. In inverse-parallel In parallel None of these In series In inverse-parallel In parallel None of these In series ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Switching frequency of SITH is 60 KHz. 10 KHz. 5 KHz. 100 KHz. 60 KHz. 10 KHz. 5 KHz. 100 KHz. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCRs are used in series to meet high current demand. low current demand. high voltage demand. low voltage demand. high current demand. low current demand. high voltage demand. low voltage demand. ANSWER DOWNLOAD EXAMIANS APP
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