Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region None of these Saturation Negative resistance Cut-off None of these Saturation Negative resistance Cut-off ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If the anode current is 800 A, then the amount of current required to turn off the GTO is about 600 A. 200 A. 400 A. 20 A. 600 A. 200 A. 400 A. 20 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in heat sink? Aluminium. Carbon. Silver. Iron. Aluminium. Carbon. Silver. Iron. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be 4, 6. 7, 5. 5, 7. 6, 4. 4, 6. 7, 5. 5, 7. 6, 4. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is both (A) and (B). < latching current but greater than holding current and gate signal is 0. < latching current but greater than holding current and gate signal is present. less than holding current. both (A) and (B). < latching current but greater than holding current and gate signal is 0. < latching current but greater than holding current and gate signal is present. less than holding current. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics By which one of the following we can measure the reliability of a string? Derating factor. String efficient. Factor of safety. Reliability factor. Derating factor. String efficient. Factor of safety. Reliability factor. ANSWER DOWNLOAD EXAMIANS APP
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