Power Electronics A diac is simply ___________. None of these A triac without gate terminal A three junction device A single junction device None of these A triac without gate terminal A three junction device A single junction device ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Between the peak point and the valley point of UJT emitter characteristics we have ___________ region Negative resistance None of these Cut-off Saturation Negative resistance None of these Cut-off Saturation ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant SCR Transistor None of these UJT SCR Transistor None of these UJT ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Snubber circuit is used with SCR either series or parallel. in series. anti parallel. in parallel. either series or parallel. in series. anti parallel. in parallel. ANSWER DOWNLOAD EXAMIANS APP
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 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance? 108 ohm 111.9 ohm 11.19 ohm 115 ohm 108 ohm 111.9 ohm 11.19 ohm 115 ohm ANSWER DOWNLOAD EXAMIANS APP