Rectifiers and Converters In a single phase rotary converter the number of slip rings will be Three Six Two Four Three Six Two Four ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Variable speed operation Traction Illumination Electrolysis Variable speed operation Traction Illumination Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The cathdde voltage drop, in a mercury arc rectifier, is due to expenditure of energy in overcoming the electrostatic field expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization surface resistance expenditure of energy in overcoming the electrostatic field expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization surface resistance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed Both ion and electron streams will move in the same direction Internal losses will be reduced The rectifier will not operate The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction Internal losses will be reduced The rectifier will not operate The rectifier will operate at reduced efficiency ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on voltage only current only voltage and current r.m.s. value of current voltage only current only voltage and current r.m.s. value of current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS