Power Electronics The UJT may be used as ___________. Am amplifier A rectifier None of these A sawtooth generator Am amplifier A rectifier None of these A sawtooth generator ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 150 µs. 300 µs. 200 µs. 100 µs. 150 µs. 300 µs. 200 µs. 100 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ terminals. None of these Four Two Three None of these Four Two Three ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability MOSFETs. Semi conductor diodes. TRIACs. Thyristor. MOSFETs. Semi conductor diodes. TRIACs. Thyristor. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Rise time is defined by the interval when anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be 2121.32 A. 1500 A. 4242.64 A. 6000 A. 2121.32 A. 1500 A. 4242.64 A. 6000 A. ANSWER DOWNLOAD EXAMIANS APP
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