Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 25°C 75°C 40°C 60°C 25°C 75°C 40°C 60°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Copper oxide rectifiers Mechanical rectifiers Mercury arc rectifiers Selenium rectifiers Copper oxide rectifiers Mechanical rectifiers Mercury arc rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started from A.C. side as induction motor by means of a small auxiliary motor All of the listed here from D.C. side as D.C. motor from A.C. side as induction motor by means of a small auxiliary motor All of the listed here from D.C. side as D.C. motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on voltage and current r.m.s. value of current voltage only current only voltage and current r.m.s. value of current voltage only current only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 40, 50 30, 60 20, 30 75, 85 40, 50 30, 60 20, 30 75, 85 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of copper aluminium graphite silver copper aluminium graphite silver ANSWER DOWNLOAD EXAMIANS APP
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