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Rectifiers and Converters

Rectifiers and Converters
Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of

300 A at 300 V
100 A at 100 V
400 A at 400 V
500 A at 500 V

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Rectifiers and Converters
The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following

cathode drop and arc drop
anode drop and arc drop
anode drop and cathode drop
anode drop, cathode drop and arc drop

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Rectifiers and Converters
The applications of selenium rectifiers are usually limited to potential of

100 V
20 V
30 V
10 V

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Rectifiers and Converters
The ionization potential of mercury is approximately

10.4 V
16.4 V
None of the listed here
5.4 V

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Rectifiers and Converters
Selenium rectifier can be operated at temperatures as high as

25°C
40°C
60°C
75°C

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Rectifiers and Converters
Mercury, in arc rectifiers, is chosen for cathode because

Its atomic weight is quite high
Its ionization potential is relatively low
Its boiling point and specific heat are low
All of the listed here

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