Power Electronics A triac is a ___________ switch Mechanical None of these Unidirectional Bidirectional Mechanical None of these Unidirectional Bidirectional ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is both (A) and (B). less than holding current. < latching current but greater than holding current and gate signal is 0. < latching current but greater than holding current and gate signal is present. both (A) and (B). less than holding current. < latching current but greater than holding current and gate signal is 0. < latching current but greater than holding current and gate signal is present. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying Positive source signal. Positive gate signal. Positive drain signal. None of these. Positive source signal. Positive gate signal. Positive drain signal. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Rise time is defined by the interval when gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. 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 What is used to protect the SCR from over current ? Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
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