Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Three-phase Two-phase Single-phase Six-phase Three-phase Two-phase Single-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The cathdde voltage drop, in a mercury arc rectifier, is due to surface resistance expenditure of energy in overcoming the electrostatic field expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization surface resistance expenditure of energy in overcoming the electrostatic field expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter I2R losses as compared to a D.C. generator of the same size will be More Less Remain same None of the listed here More Less Remain same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? All of the listed here Time switches Telephones Relay All of the listed here Time switches Telephones Relay ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 70 % 60 % 40 % 50 % 70 % 60 % 40 % 50 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 80 to 85% 85 to 90% 90 to 95% 65 to 75% 80 to 85% 85 to 90% 90 to 95% 65 to 75% ANSWER DOWNLOAD EXAMIANS APP
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