Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Motor converters Rectifiers All of the listed here Rotary converters Motor converters Rectifiers All of the listed here Rotary converters ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier tube is evacuated low mercury vapour pressures are used anode is heated an auxiliary electrode is used tube is evacuated low mercury vapour pressures are used anode is heated an auxiliary electrode is used ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters With a motor converter it is possible to obtain D.C. voltage only upto 200-100 V 600-800 V 1000-1200 V 1700-2000 V 200-100 V 600-800 V 1000-1200 V 1700-2000 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers operate on low temperatures give poor regulation can operate on high voltages can operate on heavy loads operate on low temperatures give poor regulation can operate on high voltages can operate on heavy loads ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 25 to 30 per cent None of the listed here 15 to 20 per cent 5 to 10 per cent 25 to 30 per cent None of the listed here 15 to 20 per cent 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
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