Question

diffrence between primary and secondary cells

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Answer 1

A primary cell cannot be recharged whereas a secondary cell can be recharged.

In a primary cell chemical reaction is irreversible whereas in a secondary cell chemical reaction is reversible.

The internal resistance is high for a primary cell whereas it is low for a secondary cell.

In a primary cell, chemical energy is converted into electrical energy when current is drawn from it whereas in a secondary cell electrical energy is converted into chemical energy when current is passed through it and chemical energy is converted into electrical energy when current is drawn from it.

A primary cell is light and less expensive whereas a secondary cell is heavy and expensive.

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