Power Electronics After peak point, the UJT operates in the ___________ region. None of these Cut-off Saturation Negative resistance None of these Cut-off Saturation Negative resistance ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Heat sink. Voltage clamping device. CB and fuse. Snubber circuit. Heat sink. Voltage clamping device. CB and fuse. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For series connected SCR’s dynamic equalising circuit consists of series R and diode with C across R. R and C in series but with diode across C. R and C in series but with diode across R. series R and diode with C across R. series R and diode with C across R. R and C in series but with diode across C. R and C in series but with diode across R. series R and diode with C across R. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Spread time is defined as the interval during which anode current rises from 10 % to 90 % of its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 90 % to its final value. anode current rises from 10 % to 90 % of its final value. both (A) and (B). anode voltage drops from 10 % of its initial value to zero. anode current rises from 90 % to its final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.002 A. 0.009 A. 0.01 A. 0.004 A. 0.002 A. 0.009 A. 0.01 A. 0.004 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Dynamic equalizing circuit is used for equal division of current through each thyristor in parallel. equal division of current through each thyristor in series. equal division of voltage across each thyristor in parallel. equal division of voltage across each thyristor. equal division of current through each thyristor in parallel. equal division of current through each thyristor in series. equal division of voltage across each thyristor in parallel. equal division of voltage across each thyristor. ANSWER DOWNLOAD EXAMIANS APP
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