Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode electrons ions ions and electrons All of the listed here electrons ions ions and electrons All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 75, 85 20, 30 30, 60 40, 50 75, 85 20, 30 30, 60 40, 50 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury high temperature electron streams ionization colour of mercury high temperature electron streams ionization ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? They do not require any voltage for filament heating Both of the listed here They are mechanically strong None of the listed here They do not require any voltage for filament heating Both of the listed here They are mechanically strong None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by None of the listed here 5 to 10 per cent 15 to 20 per cent 25 to 30 per cent None of the listed here 5 to 10 per cent 15 to 20 per cent 25 to 30 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor converter All of the listed here Rotary converter Motor generator set Motor converter All of the listed here Rotary converter Motor generator set ANSWER DOWNLOAD EXAMIANS APP
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