Leakage current flows through the thyristor in both forward and reverse blocking mode. reverse blocking mode. forward blocking mode. forward conduction mode. TRUE ANSWER : ? YOUR ANSWER : ?
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°. 60° to 120°. 60° to 180°. 30° to 180°. TRUE ANSWER : ? YOUR ANSWER : ?
How can we protect SCR from thermal conditions ? Use of snubber circuit. Using heat sink. Using CB and fuse. Using equalizing circuit. TRUE ANSWER : ? YOUR ANSWER : ?
Anode current in an SCR consists of either electron or holes. electrons only. Both electron and holes. holes only. TRUE ANSWER : ? YOUR ANSWER : ?
The device that exhibits negative resistance region is ___________. Diac UJT Transistor Triac TRUE ANSWER : ? YOUR ANSWER : ?
Calculate the maximum voltage that can be safely blocked by the string shown in figure, if maximum allowable leakage current is 2 mA? 8 KV. 2 KV. 6 KV. 10 KV. TRUE ANSWER : ? YOUR ANSWER : ?
If the anode current is 800 A, then the amount of current required to turn off the GTO is about 200 A. 400 A. 20 A. 600 A. TRUE ANSWER : ? YOUR ANSWER : ?
Thyristor is nothing but a Amplifier with large current gain. Controlled transistor. Amplifier with higher gain. Controlled switch. TRUE ANSWER : ? YOUR ANSWER : ?