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Rectifiers and Converters

Rectifiers and Converters
The ionization potential of mercury is approximately

None of the listed here
10.4 V
5.4 V
16.4 V

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Rectifiers and Converters
Which of the following is the loss within the mercury arc rectifier chamber?

Voltage drop at the anode
Voltage drop in arc
Voltage drop at the cathode
All of the listed here

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Rectifiers and Converters
Copper oxide rectifier is usually designed not to operate above

75°C
55°C
30°C
45°C

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Rectifiers and Converters
In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode.

any of the listed here
none of the listed here
accelerates
decelerates

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Rectifiers and Converters
In a single phase rotary converter the number of slip rings will be

Two
Four
Six
Three

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Rectifiers and Converters
In a mercury arc rectifier, the anode is usually made of

copper
graphite
aluminium
silver

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