Power Electronics Materials used in heat sink should have large surface area. All of these. high melting point. high thermal conductivity. large surface area. All of these. high melting point. high thermal conductivity. 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 3.3 µs 3 µs. 3.1 µs 3.2 µs 3.3 µs 3 µs. 3.1 µs ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Both A and B. Directly proportional to inductance in the circuit. Directly proportional to supply voltage. Inversely proportional to supply voltage. Both A and B. Directly proportional to inductance in the circuit. Directly proportional to supply voltage. Inversely proportional to supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To meet high current demand we use SCRs in parallel connection. series connection. anti parallel connection. both B and C. parallel connection. series connection. anti parallel connection. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Spread time is defined as the interval during which anode current rises from 90 % to its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 10 % to 90 % of its final value. anode current rises from 90 % to its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 10 % to 90 % of its final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region Negative resistance Saturation Cut-off None of these Negative resistance Saturation Cut-off None of these ANSWER DOWNLOAD EXAMIANS APP
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