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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

increases
none of the listed here
remains constant
decreases

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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
Petroleum jelly is applied to the electrical connections to the lead-acid battery

prevent short-circuiting
prevent corrosion
reduce path resistance
prevent local heating

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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

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

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Electrolysis and Storage Batteries
The active materials on the positive and negative plates of a fully charged lead-acid battery are

None of these
lead peroxide and lead
lead sulphate and lead
lead and lead peroxide

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Electrolysis and Storage Batteries
The charge required to liberate one gram equivalent of any substance is known as ______ constant

None of the listed here
Faraday’s
Boltzman
Time

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