Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury ionization high temperature electron streams colour of mercury ionization high temperature electron streams ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following metals is generally manufactured by electrolysis process? Zinc Copper Aluminium Load Zinc Copper Aluminium Load ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers give poor regulation operate on low temperatures can operate on high voltages can operate on heavy loads give poor regulation operate on low temperatures can operate on high voltages can operate on heavy loads ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 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 none of the listed here 2 V to 3.5 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as critical grid voltage maximum grid voltage all of the listed here non of the listed here critical grid voltage maximum grid voltage all of the listed here non of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. magnitude phase All of the listed here polarity magnitude phase All of the listed here polarity ANSWER DOWNLOAD EXAMIANS APP
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