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Rectifiers and Converters
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
none of the listed here
2 V to 3.5 V per cm length of the arc
0.5 V to 1.5 V per cm length of the arc
0.05 V to 0.2 V per cm length of the arc
none of the listed here
2 V to 3.5 V per cm length of the arc
0.5 V to 1.5 V per cm length of the arc
Answer
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Rectifiers and Converters
In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable
75, 85
40, 50
20, 30
30, 60
75, 85
40, 50
20, 30
30, 60
Answer
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Rectifiers and Converters
In a mercury arc rectifier positive ions are attracted towards
shell bottom
cathode
mercury pool
anode
shell bottom
cathode
mercury pool
anode
Answer
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Rectifiers and Converters
The metal rectifiers, as compared to mercury arc rectifiers
operate on low temperatures
can operate on heavy loads
give poor regulation
can operate on high voltages
operate on low temperatures
can operate on heavy loads
give poor regulation
can operate on high voltages
Answer
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Rectifiers and Converters
The advantage of mercury arc rectifier is that
it has high efficiency
All of the listed here
it is light in weight and occupies small floor space
it is comparatively noiseless
it has high efficiency
All of the listed here
it is light in weight and occupies small floor space
it is comparatively noiseless
Answer
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