Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of silver aluminium graphite copper silver aluminium graphite copper ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 60°C 75°C 25°C 40°C 60°C 75°C 25°C 40°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Single-phase Three-phase Two-phase Six-phase Single-phase Three-phase Two-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The cathdde voltage drop, in a mercury arc rectifier, is due to expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization expenditure of energy in overcoming the electrostatic field surface resistance expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization expenditure of energy in overcoming the electrostatic field surface resistance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following are the applications of D.C. system? All of the listed here Battery charging work Arc welding Electrolytic and electro-chemical processes All of the listed here Battery charging work Arc welding Electrolytic and electro-chemical processes 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 non of the listed here maximum grid voltage critical grid voltage all of the listed here non of the listed here maximum grid voltage critical grid voltage ANSWER DOWNLOAD EXAMIANS APP
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