Electrolysis and Storage Batteries
Capacity of dry cells is

more when it is supplying current for continuous periods
more when it is supplying current for intermittent periods
unaffected by the type of discharge
None of these

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Electrolysis and Storage Batteries
Life of the batteries is in the following ascending order.

Lead-acid cell, Nickel-cadmium cell, Edison cell
Edison cell, Nickel-cadmium cell, lead-acid cell
Nickel-cadmium cell, Edison cell, lead-acid cell
Lead-acid cell, Edison cell, Nickel cadmium cell

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Electrolysis and Storage Batteries
In a lead-acid cell, if the specific gravity of sulphuric acid is 1.8, it will require following ratio of acid to water to get mixture of specific gravity of 1.3

4 parts of acid to 4 parts of water
4 parts of acid to 8 parts of water
4 parts of acid to 6 parts of water
6 parts of acid to 4 parts of water

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