Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.01 A. 0.004 A. 0.009 A. 0.002 A. 0.01 A. 0.004 A. 0.009 A. 0.002 A. 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 6, 4. 4, 6. 7, 5. 5, 7. 6, 4. 4, 6. 7, 5. 5, 7. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. In series None of these In parallel In inverse-parallel In series None of these In parallel In inverse-parallel ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 120 A. 110 A. 150 A. 100 A. 120 A. 110 A. 150 A. 100 A. 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 Power transistor are type of IGBTs. All of above. MOSFETs. BJTs. IGBTs. All of above. MOSFETs. BJTs. ANSWER DOWNLOAD EXAMIANS APP
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