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Question

State three differences between primary and secondary cells.


Solution

The three differences between a primary and a secondary cell is as follows:
              $$Primary\ cell$$                              $$Secondary\ cell$$
1. In a primary cell, chemical reactions are irreversible1. In a secondary cell, chemical reactions are reversible
2. When current is drawn from a primary cell, chemical energy is converted into electrical energy2. When current passes in a secondary cell, electrical energy is converted into chemical energy, when current is drawn from it, chemical energy is converted into electrical energy
3. Primary cell cannot be recharged3.Secondary cell can be recharged

Physics

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