Power Electronics IGBT combines the advantages of BJTs and MOSFETs. SITs and MOSFETs. BJTs and SITs. None of these. BJTs and MOSFETs. SITs and MOSFETs. BJTs and SITs. None of these. 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. 5, 7. 7, 5. 6, 4. 4, 6. 5, 7. 7, 5. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. Extremely low None of these High Low Extremely low None of these High Low ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The latching current of GTO should be of order 1 A. 500 mA. 100 mA. 2 A. 1 A. 500 mA. 100 mA. 2 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. Negative resistance Saturation None of these Cut-off Negative resistance Saturation None of these Cut-off ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is 0.67. 0.32. 0.45. 0.27. 0.67. 0.32. 0.45. 0.27. ANSWER DOWNLOAD EXAMIANS APP
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