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प्रश्न
What do you mean by a cell?
एक शब्द/वाक्यांश उत्तर
उत्तर
An electric cell is a device in which a constant difference in potential is maintained between the two conductors by a chemical reaction. Thus, a cell can be used as a source of electrons or current. In a cell, chemical energy changes into electrical energy when it is in use.
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