Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? They are mechanically strong They do not require any voltage for filament heating Both of the listed here None of the listed here They are mechanically strong They do not require any voltage for filament heating Both of the listed here None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury electron streams high temperature ionization colour of mercury electron streams high temperature ionization ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. magnitude All of the listed here polarity phase magnitude All of the listed here polarity phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed The rectifier will not operate Both ion and electron streams will move in the same direction The rectifier will operate at reduced efficiency Internal losses will be reduced The rectifier will not operate Both ion and electron streams will move in the same direction The rectifier will operate at reduced efficiency Internal losses will be reduced ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 2000 A 200 A 500 A 1500 A 2000 A 200 A 500 A 1500 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury pool rectifier, the voltage drop across its electrodes is directly proportional to load is almost independent of load current is inversely proportional to load varies exponentially with the load current is directly proportional to load is almost independent of load current is inversely proportional to load varies exponentially with the load current ANSWER DOWNLOAD EXAMIANS APP
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