Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 60°C 40°C 75°C 25°C 60°C 40°C 75°C 25°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for One-half a cycle Two-third of a cycle One-fourth of a cycle One-third of a cycle One-half a cycle Two-third of a cycle One-fourth of a cycle One-third of a cycle ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on current only r.m.s. value of current voltage and current voltage only current only r.m.s. value of current voltage and current voltage only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its boiling point and specific heat are low All of the listed here Its atomic weight is quite high Its ionization potential is relatively low Its boiling point and specific heat are low All of the listed here Its atomic weight is quite high Its ionization potential is relatively low ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 20 V 10 V 30 V 100 V 20 V 10 V 30 V 100 V ANSWER DOWNLOAD EXAMIANS APP
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