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Electrolysis and Storage Batteries

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

all of these
colour of electrode
gassing
specific gravity

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Electrolysis and Storage Batteries
Each cell has a vent cap

to add water to the cell if needed
all of the listed here
to check the level of electrolyte
to allow gases out when the cell is on charge

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Electrolysis and Storage Batteries
During charging the specific gravity of the electrolyte of a lead-acid battery

increases
remains the same
none of the listed here
decreases

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Electrolysis and Storage Batteries
It is noticed that during discharging the following does not happen

the cell absorbs energy
voltage of the cell decreases
both anode and cathode become PbS04
specific gravity of H2SO4 decreases

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Electrolysis and Storage Batteries
The output voltage of a charger is

none of the listed here
less than the battery voltage
higher than the battery voltage
the same as the battery voltage

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Electrolysis and Storage Batteries
Ampere hour capacity of an industrial battery is based on ____ hours discharge rate.

10
24
8
12

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