Power Electronics A diac is ___________ switch A d.c. None of these A mechanical An c. A d.c. None of these A mechanical An c. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. None of these In parallel In series In inverse-parallel None of these In parallel In series In inverse-parallel ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Dynamic equalising circuit is useful both B and C. to limit di / dt of SCR. to limit dV / dt of SCR. for voltage equalisation. both B and C. to limit di / dt of SCR. to limit dV / dt of SCR. for voltage equalisation. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ pn junctions Four Three Two None of these Four Three Two None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics In a UJT, the p-type emitter is ___________ doped Lightly Moderately None of these Heavily Lightly Moderately None of these Heavily 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
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