Power Electronics Which semiconductor device acts like a diode and two transistor? SCR. Diac. UJT. Triac. SCR. Diac. UJT. Triac. 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 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 conducts only during one half cycle of an alternating current wave. it can be turned OFF but not ON with a gate pulse. 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 conducts only during one half cycle of an alternating current wave. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT is sometimes called ___________ diode. Double-base Low resistance High resistance Single-base Double-base Low resistance High resistance Single-base ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. Not a thyristor None of these A four-terminal device Like a bidirectional SCR Not a thyristor None of these A four-terminal device Like a bidirectional SCR ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions Four Three Two None of these Four Three Two None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
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