Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 2 V to 3.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc 2 V to 3.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by None of the listed here 5 to 10 per cent 15 to 20 per cent 25 to 30 per cent None of the listed here 5 to 10 per cent 15 to 20 per cent 25 to 30 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters It is the_______of the transformer on which the magnitude of angle of overlap depends. all of the listed here leakage reactance capacitance resistance all of the listed here leakage reactance capacitance resistance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Any of the listed here Squirrel cage induction motor Slip ring induction motor Synchronous motor Any of the listed here Squirrel cage induction motor Slip ring induction motor Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started from D.C. side as D.C. motor All of the listed here by means of a small auxiliary motor from A.C. side as induction motor from D.C. side as D.C. motor All of the listed here by means of a small auxiliary motor from A.C. side as induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier tube is evacuated anode is heated an auxiliary electrode is used low mercury vapour pressures are used tube is evacuated anode is heated an auxiliary electrode is used low mercury vapour pressures are used ANSWER DOWNLOAD EXAMIANS APP
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