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HOW BATTERY WORKS IN VEHICLE ?



The working of battery is based on the principle that an electric current is generated when two kinds of metal having different ionization potential are connected with a conductive wire and submerged in an electrolyte.The electrical energy is converted into potential chemical energy during charging and during discharging, this potential energy is reconverted into electrical energy.











Discharge of battery : 

When the battery discharge, the positive plates containing lead peroxide(PbO2) and negative plates having spongy lead(Pb) combine with sulphuric acid(H2SO4) to form lead sulphate(PbSo4)and water(H2O).

As discharging continues and the sulphuric acid continues to decompose, the concentration of sulphuric acid in the electrolyte gradually declines.

The amount of sulphuric acid used in the process is proportional to the amount of electricity.

Note:* sulphurc acid (H2SO4) is highly corrosive & poisonous acid .

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