Power Electronics A diac has ___________ pn junctions None of these Four Two Three None of these Four Two Three ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The normal way to turn on a diac is by ___________. Breakover voltage Gate current Gate voltage None of these Breakover voltage Gate current Gate voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Remains the same Increases Decreases None of these Remains the same Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 200 µs. 150 µs. 100 µs. 300 µs. 200 µs. 150 µs. 100 µs. 300 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is < 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. both (A) and (B). less than holding current. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Delay time is defined by the interval when gate current increases from 90 % to 100 % of its final value. all of these. anode current reaches 10 % from forward leakage current. anode voltage drops from 100 % to 90 % of its actual value. gate current increases from 90 % to 100 % of its final value. all of these. anode current reaches 10 % from forward leakage current. anode voltage drops from 100 % to 90 % of its actual value. ANSWER DOWNLOAD EXAMIANS APP
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