Power Electronics Rise time is defined by the interval when gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. both B and C. anode voltage drops from 90 % to 10 % of its initial value. gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. both B and C. anode voltage drops from 90 % to 10 % of its initial value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. In inverse-parallel None of these In parallel In series In inverse-parallel None of these In parallel In series ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 30° to 150°. 30° to 180°. 60° to 180°. 60° to 120°. 30° to 150°. 30° to 180°. 60° to 180°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 60. 70. 80. 90. 60. 70. 80. 90. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device metal oxide varistor. snubber circuit. fast acting fuse. aluminium block. metal oxide varistor. snubber circuit. fast acting fuse. aluminium block. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The UJT may be used as ___________. Am amplifier None of these A sawtooth generator A rectifier Am amplifier None of these A sawtooth generator A rectifier ANSWER DOWNLOAD EXAMIANS APP