Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Traction Electrolysis Variable speed operation Illumination Traction Electrolysis Variable speed operation Illumination ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of silver aluminium copper graphite silver aluminium copper graphite ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. phase All of the listed here polarity magnitude phase All of the listed here polarity magnitude ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter operates at a None of the listed here low power factor zero power factor high power factor None of the listed here low power factor zero power factor high power factor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed Both ion and electron streams will move in the same direction The rectifier will not operate The rectifier will operate at reduced efficiency Internal losses will be reduced Both ion and electron streams will move in the same direction The rectifier will not operate The rectifier will operate at reduced efficiency Internal losses will be reduced 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 atomic weight is quite high Its boiling point and specific heat are low Its ionization potential is relatively low All of the listed here Its atomic weight is quite high Its boiling point and specific heat are low ANSWER DOWNLOAD EXAMIANS APP
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