Power Electronics Under normal operating condition voltage clamping device offers impedance of moderate value. zero value. high value. low value. moderate value. zero value. high value. low value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Using CB and fuse. Using heat sink. Using equalizing circuit. Use of snubber circuit. Using CB and fuse. Using heat sink. Using equalizing circuit. Use of snubber circuit. 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 ? 0.03 ohm 3.0 ohm 0.3 ohm 0.3 ohm 0.03 ohm 3.0 ohm 0.3 ohm 0.3 ohm ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT is sometimes called ___________ diode. Single-base Low resistance High resistance Double-base Single-base Low resistance High resistance Double-base ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is ___________ switch A mechanical A d.c. None of these An c. A mechanical A d.c. None of these An c. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ semiconductor layers Three Four None of these Two Three Four None of these Two ANSWER DOWNLOAD EXAMIANS APP
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