Power Electronics Which of the following is used in heat sink? Carbon. Silver. Iron. Aluminium. Carbon. Silver. Iron. Aluminium. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. Increases None of these Decreases Remains the same Increases None of these Decreases Remains the same ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will Turn on if inductance is removed. Not turn on. Turn on if pulse frequency us increased to two times. Turn on. Turn on if inductance is removed. Not turn on. Turn on if pulse frequency us increased to two times. Turn on. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.01 A. 0.009 A. 0.004 A. 0.002 A. 0.01 A. 0.009 A. 0.004 A. 0.002 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is 0.7. 0.25. 0.75. 0.2. 0.7. 0.25. 0.75. 0.2. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region Cut-off Negative resistance Saturation None of these Cut-off Negative resistance Saturation None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS