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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
In constant-current charging method, the supply voltage from discharged to fully charged condition

remains constant
increases
none of the listed here
decreases

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Electrolysis and Storage Batteries
Excessive formation of lead sulphate on the surface of the plates happens because of

persistent undercharging
allowing a battery to stand in discharged condition for a long time
all of the listed here
low level of electrolyte

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Electrolysis and Storage Batteries
Level of electrolyte in a cell should be _____ the level of plates

below
equal to
none of the listed here
above

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Electrolysis and Storage Batteries
As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its

lower e.m.f.
higher internal resistance
compactness
small quantity of electrolyte used

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Electrolysis and Storage Batteries
When the load resistance equals the generator resistance which of the following will be maximum ?

Current
Voltage across the load resistance
Power in the load resistance
Efficiency of the circuit

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Electrolysis and Storage Batteries
The capacity of a battery is expressed in terms of

voltage rating
ampere-hour rating
current rating
none of the listed here

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