Power Electronics Under normal operating condition voltage clamping device offers impedance of zero value. low value. high value. moderate value. zero value. low value. high value. moderate value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A 200 A thyristor is to be operated in parallel with a 300 A thyristor. The ON state voltage drops are 1.5 V and 1.2 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 500 A and each of them is fully loaded ? 3.0 ohm 0.03 ohm 0.3 ohm 0.3 ohm 3.0 ohm 0.03 ohm 0.3 ohm 0.3 ohm ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT has ___________. None of these One pn junction Three pn junctions Two pn junctions None of these One pn junction Three pn junctions Two pn junctions ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.004 A. 0.002 A. 0.01 A. 0.009 A. 0.004 A. 0.002 A. 0.01 A. 0.009 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Heat sink. CB and fuse. Voltage clamping device. Snubber circuit. Heat sink. CB and fuse. Voltage clamping device. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The normal way to turn on a diac is by ___________. Gate voltage Gate current Breakover voltage None of these Gate voltage Gate current Breakover voltage None of these ANSWER DOWNLOAD EXAMIANS APP
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