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Physics

In an electrical cell while in use, the change in energy is from :

  1. Electrical to magnetic
  2. Chemical to electrical
  3. Mechanical to electrical
  4. Chemical to heat

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Answer

Chemical to electrical

Reason — The electric cell maintains a constant difference in potential between the two conductors in the electrolyte by a chemical reaction to obtain a continuous flow of charge between them so a cell stores the chemical energy and it can be used as a source of current and hence chemical energy changes into electrical energy when the cell is in use.

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