Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Illumination Variable speed operation Electrolysis Traction Illumination Variable speed operation Electrolysis Traction ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of 400 A at 400 V 100 A at 100 V 300 A at 300 V 500 A at 500 V 400 A at 400 V 100 A at 100 V 300 A at 300 V 500 A at 500 V 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 A rotary converter operates at a low power factor zero power factor high power factor None of the listed here low power factor zero power factor high power factor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies none of the listed here 2 V to 3.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc none of the listed here 2 V to 3.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier 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 tube is evacuated low mercury vapour pressures are used ANSWER DOWNLOAD EXAMIANS APP
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