Power Electronics Let of a thyristor Vc1, Vc2, Vc3 are forward break over voltage for gate current Ig1, Ig2, Ig3 respectively. Then Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Using equalizing circuit. Using heat sink. Use of snubber circuit. Using CB and fuse. Using equalizing circuit. Using heat sink. Use of snubber circuit. Using CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is 60. 65. 3.714. 37.14. 60. 65. 3.714. 37.14. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The normal way to turn on a diac is by ___________. None of these Gate voltage Gate current Breakover voltage None of these Gate voltage Gate current Breakover voltage ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the inter-base resistance (RBB) of a UJT ___________. None of these Decreases Increases Remains the same None of these Decreases Increases Remains the same ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. Low None of these High Extremely low Low None of these High Extremely low ANSWER DOWNLOAD EXAMIANS APP
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