Power Electronics Which one is most suitable power device for high frequency (>100 KHz) switching application? Microwave transistor. Schottky diode. Power MOSFET. BJT. Microwave transistor. Schottky diode. Power MOSFET. BJT. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A power semiconductor may undergo damage due to Low di/dt. Low dv/dt. High di/dt. High dv/dt. Low di/dt. Low dv/dt. High di/dt. High dv/dt. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Practical way of obtaining static voltage equalization in series connected SCRs is by the use of resistors of different values across each SCR. resistors of the same value across each SCR. one resistor across the string. one resistor in series with each SCR. resistors of different values across each SCR. resistors of the same value across each SCR. one resistor across the string. one resistor in series with each SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Spread time is defined as the interval during which 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. anode current rises from 10 % to 90 % of its final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Use of snubber circuit. Using heat sink. Using equalizing circuit. Using CB and fuse. Use of snubber circuit. Using heat sink. Using equalizing circuit. Using CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum di / dt in a SCR is directly proportional to Vm of supply voltage. inversely proportional to L in the circuit. both A and C. inversely proportional to Vm of supply voltage. directly proportional to Vm of supply voltage. inversely proportional to L in the circuit. both A and C. inversely proportional to Vm of supply voltage. ANSWER DOWNLOAD EXAMIANS APP
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