Power Electronics SCR will be turned off when anode current is less than holding current. < latching current but greater than holding current and gate signal is 0. both (A) and (B). < latching current but greater than holding current and gate signal is present. less than holding current. < latching current but greater than holding current and gate signal is 0. both (A) and (B). < latching current but greater than holding current and gate signal is present. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Decreases Remains the same Increases None of these Decreases Remains the same Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.002 A. 0.004 A. 0.01 A. 0.009 A. 0.002 A. 0.004 A. 0.01 A. 0.009 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Snubber circuit is used with SCR either series or parallel. anti parallel. in parallel. in series. either series or parallel. anti parallel. in parallel. in series. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Power electronics essentially deals with control of a.c. power at ___________. Frequencies less than 10 Hz Frequencies above 1000 kHz Frequencies above 20 kHz 50 Hz frequency Frequencies less than 10 Hz Frequencies above 1000 kHz Frequencies above 20 kHz 50 Hz frequency ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device aluminium block. metal oxide varistor. snubber circuit. fast acting fuse. aluminium block. metal oxide varistor. snubber circuit. fast acting fuse. ANSWER DOWNLOAD EXAMIANS APP
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