revathy r pwrpnt

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Page 1: Revathy r pwrpnt

WELCOME

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POWERPOINT PRESENTATIONPHYSICAL SCIENCEREVATHY

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ELECTRIC CELLS

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ELECTRIC CELLS

Electric cells are the source of energy to produce electric current

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DIFFERENT TYPES OF CELLS

• Dry cell• Mercury cell• Nickel-Cadmium cell• Li-Fe cell

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USES OF DRY CELL

USED IN Radio Camera Clock Toys

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USES OF MERCURY CELL

USED IN• Watch• Calculator• Electronic devices

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USES OF Ni-Cd CELL

USED INTorches Camera

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USES OF Li-Fe CELL

USED IN Mobile phoneLaptop

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MERITS OF ELECTRONIC CELLS

• High efficiency• Economic

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DEMERITS

• Causes Pollution• Reduce fertility of soil

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