Power Electronics A UJT has ___________. Two pn junctions Three pn junctions None of these One pn junction Two pn junctions Three pn junctions None of these One pn junction ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. None of these Only negative Both positive and negative Only positive None of these Only negative Both positive and negative Only positive ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Inversely proportional to supply voltage. Directly proportional to supply voltage. Both A and B. Directly proportional to inductance in the circuit. Inversely proportional to supply voltage. Directly proportional to supply voltage. Both A and B. Directly proportional to inductance in the circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 800 V/µs. 1000 V/µs. 600 V/µs. 1200 V/µs. 800 V/µs. 1000 V/µs. 600 V/µs. 1200 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3.2 µs 3 µs. 3.3 µs 3.1 µs 3.2 µs 3 µs. 3.3 µs 3.1 µs ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Power transistor are type of All of above. IGBTs. MOSFETs. BJTs. All of above. IGBTs. MOSFETs. BJTs. ANSWER DOWNLOAD EXAMIANS APP
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