Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by None of the listed here 25 to 30 per cent 15 to 20 per cent 5 to 10 per cent None of the listed here 25 to 30 per cent 15 to 20 per cent 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a single phase rotary converter the number of slip rings will be Six Two Four Three Six Two Four Three ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters It is the_______of the transformer on which the magnitude of angle of overlap depends. resistance all of the listed here leakage reactance capacitance resistance all of the listed here leakage reactance capacitance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Selenium rectifiers Mercury arc rectifiers Mechanical rectifiers Copper oxide rectifiers Selenium rectifiers Mercury arc rectifiers Mechanical rectifiers Copper oxide rectifiers 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 The rectifier will operate at reduced efficiency The rectifier will not operate Internal losses will be reduced Both ion and electron streams will move in the same direction The rectifier will operate at reduced efficiency The rectifier will not operate Internal losses will be reduced ANSWER DOWNLOAD EXAMIANS APP
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