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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

PbSC-4
Pb
PbO
Pb02

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Electrolysis and Storage Batteries
The body of Edison cell is made of

aluminium
bakelite
rubber
nickel plated steel

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Electrolysis and Storage Batteries
Local action in a battery is indicated by

excessive gassing under load conditions
excessive drop in the specific gravity of electrolyte even when the cell is on open circuit
none of the listed here
both of the listed here

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Electrolysis and Storage Batteries
The watt-hour efficiency of a lead-acid cell varies between

25 to 35%
70 to 80%
40 to 60%
90 to 95%

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Electrolysis and Storage Batteries
The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is

none of the listed here
just one
always less than one
always greater than one

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Electrolysis and Storage Batteries
Under normal charging rate, the charging current should be

20% of capacity
10% of capacity
30% of capacity
40% of capacity

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