Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? None of the listed here They do not require any voltage for filament heating They are mechanically strong Both of the listed here None of the listed here They do not require any voltage for filament heating They are mechanically strong Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 60°C 25°C 40°C 75°C 60°C 25°C 40°C 75°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 0.5 V to 1.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc 2 V to 3.5 V per cm length of the arc none of the listed here 0.5 V to 1.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc 2 V to 3.5 V per cm length of the arc none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode All of the listed here electrons ions and electrons ions All of the listed here electrons ions and electrons ions ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A synchronous motor 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 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on r.m.s. value of current voltage and current voltage only current only r.m.s. value of current voltage and current voltage only current only ANSWER DOWNLOAD EXAMIANS APP
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