Rectifiers and Converters To produce cathode spot in a mercury arc rectifier tube is evacuated anode is heated low mercury vapour pressures are used an auxiliary electrode is used tube is evacuated anode is heated low mercury vapour pressures are used an auxiliary electrode is used ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A D.C. shunt motor A D.C. series motor An induction motor A synchronous motor A D.C. shunt motor A D.C. series motor An induction motor A synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of graphite aluminium copper silver graphite aluminium copper silver ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Selenium rectifiers Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers Selenium rectifiers Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ionization potential of mercury is approximately 10.4 V 16.4 V None of the listed here 5.4 V 10.4 V 16.4 V None of the listed here 5.4 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 60 % 70 % 40 % 50 % 60 % 70 % 40 % 50 % ANSWER DOWNLOAD EXAMIANS APP
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