Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode All of the listed here ions electrons ions and electrons All of the listed here ions electrons ions and electrons ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 85 to 90% 90 to 95% 65 to 75% 80 to 85% 85 to 90% 90 to 95% 65 to 75% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 70 % 60 % 50 % 40 % 70 % 60 % 50 % 40 % 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 Synchronous motor Squirrel cage induction motor Slip ring induction motor Any of the listed here Synchronous motor Squirrel cage induction motor Slip ring induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 5 to 10 per cent 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent 25 to 30 per cent 15 to 20 per cent None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. polarity phase magnitude All of the listed here polarity phase magnitude All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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