Question

State three differences between primary and secondary cells.

  • Category: Current Electricity Class 9 ICSE
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Answer

The differences between a primary and a secondary cell are —

Primary cell Secondary cell
Chemical reactions are irreversible. Chemical reactions are reversible.
Chemical energy is converted into electrical energy when current is drawn from it. Electrical energy converts into chemical energy when current is passed in it (i.e., during charging), while chemical energy converts into electrical energy when current is drawn from it (i.e., during discharging).
It can not be recharged. It can be recharged.

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