Lead-acid cell has a life of nearly charges and discharges
1000
700
500
1250
1250
Electrolyte used in a lead-acid cell is
NaOH
onlyH2S04
dilute H2SO4
only water
dilute H2SO4
Negative plate of an Edison cell is made of
iron
silver oxide
lead
copper
iron
The open circuit voltage of any storage cell depends wholly upon
all above
on the strength of its electrolyte
its chemical constituents
its temperature
all above
During the charging of a lead-acid cell
specific gravity of H2SO4 decreases
its voltage increases
it gives out energy
its cathode becomes dark chocolate brown in colour
its voltage increases
The capacity of a lead-acid cell does not depend on its
rate of charge
temperature
rate of discharge
quantity of active material
rate of charge
During charging the specific gravity of the electrolyte of a lead-acid battery
becomes zero
remains the same
decreases
increases
increases
The active materials on the positive and negative plates of a fully charged lead-acid battery are
lead and lead peroxide
lead sulphate and lead
lead peroxide and lead
none of the above
lead peroxide and lead
The storage battery generally used in electric power station is
lead-acid battery
none of the above
zinc-carbon battery
nickel-cadmium battery
lead-acid battery
The output voltage of a charger is
higher than the battery voltage
the same as the battery voltage
less than the battery voltage
none of the above
higher than the battery voltage
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