Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 65 to 75% 90 to 95% 85 to 90% 80 to 85% 65 to 75% 90 to 95% 85 to 90% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as all of the listed here maximum grid voltage critical grid voltage non of the listed here all of the listed here maximum grid voltage critical grid voltage non of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury ionization high temperature electron streams colour of mercury ionization high temperature electron streams ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 2000 A 200 A 500 A 1500 A 2000 A 200 A 500 A 1500 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode electrons All of the listed here ions and electrons ions electrons All of the listed here ions and electrons ions ANSWER DOWNLOAD EXAMIANS APP
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