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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

Pb
Pb02
PbSC-4
PbO

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Electrolysis and Storage Batteries
The effect of sulphation is that the internal resistance

increases
remains same
decreases
none of the listed here

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Electrolysis and Storage Batteries
If a lead-acid cell is discharged below 1.8 V the following will happen.

Sulphation of plates will occur
All of the listed here
Capacity of cell will reduce
Internal resistance will increase

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Electrolysis and Storage Batteries
Internal resistance of a cell is reduced by

putting plates very close together
all of the listed here
using vent plug to permit gas formed during discharge
increasing the plate area

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Electrolysis and Storage Batteries
Five 2 V cells are connected in parallel. The output voltage is

1.5 V
10 V
2 V
15 V

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Electrolysis and Storage Batteries
The following indicate that battery on charge has attained full charge

gassing
all of these
specific gravity
colour of electrode

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