Rectifiers and Converters
The voltage drop at anode, in a mercury arc rectifier is due to

high temperature inside the rectifier
high ionization potential
self restoring property of mercury
energy spent in overcoming the electrostatic field

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Rectifiers and Converters
On which of the following factors the number of phases for which a rectifier should be designed depends?

All of the listed here
The voltage regulation of the rectifier should be low
In the output circuit there should be no harmonics
The power factor of the system should be high

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