Power Electronics Anode current in an SCR consists of electrons only. holes only. Both electron and holes. either electron or holes. electrons only. holes only. Both electron and holes. either electron or holes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics In forward blocking mode of a thyristor junction J3 is in forward bias and J1, J2 is in reverse bias. Junction J1, J3 is in reverse bias and J2 is in forward bias. Junction J1 and J2 is in forward bias and J3 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. junction J3 is in forward bias and J1, J2 is in reverse bias. Junction J1, J3 is in reverse bias and J2 is in forward bias. Junction J1 and J2 is in forward bias and J3 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device aluminium block. fast acting fuse. snubber circuit. metal oxide varistor. aluminium block. fast acting fuse. snubber circuit. metal oxide varistor. 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 What happen due to high di / dt? Breakdown of junction. Local hot spot. None of these. Insulation failure. Breakdown of junction. Local hot spot. None of these. Insulation failure. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is normally ON device SIT. TRIAC. BJT. IGBT. SIT. TRIAC. BJT. IGBT. ANSWER DOWNLOAD EXAMIANS APP
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