Rectifiers and Converters To produce cathode spot in a mercury arc rectifier an auxiliary electrode is used low mercury vapour pressures are used anode is heated tube is evacuated an auxiliary electrode is used low mercury vapour pressures are used anode is heated tube is evacuated ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to ionization high temperature colour of mercury electron streams ionization high temperature colour of mercury electron streams ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 40°C 25°C 60°C 75°C 40°C 25°C 60°C 75°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? Time switches Telephones All of the listed here Relay Time switches Telephones All of the listed here Relay ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier positive ions are attracted towards shell bottom mercury pool cathode anode shell bottom mercury pool cathode anode ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by An induction motor A D.C. shunt motor A D.C. series motor A synchronous motor An induction motor A D.C. shunt motor A D.C. series motor A synchronous motor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS