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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Which of the following battery is used for aircraft ?

Dry cell battery
Silver oxide battery
Lead-acid battery
Nickel-iron battery

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Electrolysis and Storage Batteries
Life of the Edison cell is at least

ten years
eight years
seven years
five years

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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
prevent local heating
reduce path resistance

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Electrolysis and Storage Batteries
The capacity of a lead-acid cell depends on

All of these
Temperature
Density of electrolyte
Rate of discharge

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Electrolysis and Storage Batteries
During the charging of a lead-acid cell

its voltage increases
it gives out energy
specific gravity of H₂SO₄ decreases
its cathode becomes dark chocolate brown in colour

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Electrolysis and Storage Batteries
Cells are connected in parallel to

Increase the voltage output
Increase the efficiency
Increase the current capacity
Increase the internal resistance

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