Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 100 V 20 V 30 V 10 V 100 V 20 V 30 V 10 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The cathdde voltage drop, in a mercury arc rectifier, is due to expenditure of energy in ionization expenditure of energy in liberating electrons from the mercury expenditure of energy in overcoming the electrostatic field surface resistance expenditure of energy in ionization expenditure of energy in liberating electrons from the mercury expenditure of energy in overcoming the electrostatic field surface resistance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high 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 Less More Remain same None of the listed here Less More Remain same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 500 A 1500 A 200 A 2000 A 500 A 1500 A 200 A 2000 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 80 to 85% 85 to 90% 65 to 75% 90 to 95% 80 to 85% 85 to 90% 65 to 75% 90 to 95% ANSWER DOWNLOAD EXAMIANS APP
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