Rectifiers and Converters The cathdde voltage drop, in a mercury arc rectifier, is due to expenditure of energy in liberating electrons from the mercury surface resistance expenditure of energy in ionization expenditure of energy in overcoming the electrostatic field expenditure of energy in liberating electrons from the mercury surface resistance expenditure of energy in ionization expenditure of energy in overcoming the electrostatic field 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 Remain same Less None of the listed here More Remain same Less None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 80 to 85% 90 to 95% 65 to 75% 85 to 90% 80 to 85% 90 to 95% 65 to 75% 85 to 90% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 2000 A 1500 A 500 A 200 A 2000 A 1500 A 500 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? Mercury arc rectifier Rotary converter Motor-generator set Motor converter Mercury arc rectifier Rotary converter Motor-generator set Motor converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter is a single machine with two armatures and one field one armature and two fields none of the listed here one armature and one field two armatures and one field one armature and two fields none of the listed here one armature and one field ANSWER DOWNLOAD EXAMIANS APP
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