Power Electronics Which of following devices has highest di/dt and dv/dt capability? SIT. SCR. SITH. GTO. SIT. SCR. SITH. GTO. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. None of these Decreases Increases Remains the same None of these Decreases Increases Remains the same ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Spread time is defined as the interval during which anode current rises from 10 % to 90 % of its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 90 % to its final value. anode current rises from 10 % to 90 % of its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 90 % to its final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? Insulation failure. Breakdown of junction. None of these. Local hot spot. Insulation failure. Breakdown of junction. None of these. Local hot spot. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To meet high current demand we use SCRs in anti parallel connection. parallel connection. both B and C. series connection. anti parallel connection. parallel connection. both B and C. series connection. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum di / dt in a SCR is inversely proportional to Vm of supply voltage. inversely proportional to L in the circuit. directly proportional to Vm of supply voltage. both A and C. inversely proportional to Vm of supply voltage. inversely proportional to L in the circuit. directly proportional to Vm of supply voltage. both A and C. ANSWER DOWNLOAD EXAMIANS APP
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