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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The ampere-hour efficiency of a leadacid cell is normally between

20 to 35%
80 to 85%
90 to 95%
70 to 75%

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Electrolysis and Storage Batteries
The lead-acid cell should never be discharged beyond

2 V
1.9 V
1.8 V
2.1 V

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Electrolysis and Storage Batteries
It is noticed that during discharging the following does not happen

voltage of the cell decreases
both anode and cathode become PbS04
specific gravity of H2SO4 decreases
the cell absorbs energy

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Electrolysis and Storage Batteries
If a battery is wrongly connected on charge following will happen

current drawing will be very high
current delivered by the battery will be high
current drawing will be very small
current drawing will be nil

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Electrolysis and Storage Batteries
In a battery cover is placed over the element and sealed to the top of the battery container. This is done

Both of the listed here
to reduce evaporation of water from electrolyte
None of the listed here
to exclude dirt and foreign matter from the electrolyte

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Electrolysis and Storage Batteries
The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity”. The above statement is associated with

Faraday’s law of electrolysis
Newton’s law
Faraday’s law of electromagnetic
Gauss’s law

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