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 maximum grid voltage critical grid voltage all of the listed here non of the listed here maximum grid voltage critical grid voltage all of the listed here non of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 75°C 60°C 40°C 25°C 75°C 60°C 40°C 25°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its ionization potential is relatively low Its atomic weight is quite high All of the listed here Its boiling point and specific heat are low Its ionization potential is relatively low Its atomic weight is quite high All of the listed here Its boiling point and specific heat are low ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Electrolytic rectifiers Copper oxide rectifiers Selenium rectifiers Mechanical rectifiers Electrolytic rectifiers Copper oxide rectifiers Selenium rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode. any of the listed here accelerates decelerates none of the listed here any of the listed here accelerates decelerates none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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
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