What are a cell and its types?
A cell is a single electrical energy source that uses chemical reactions to produce a current.
- A primary cell or battery cannot charge easily and recharged after one use and discarded following discharge.
- A secondary cell or battery can be electrically recharged after use to their original pre-discharge condition by passing a current through the circuit in the opposite direction to the current during discharge.
- Some examples of primary cells are Daniel cell, Dry cell, and Mercury cell.
- A compact form of the LeClanche cell is the dry cell. It comprises an outer container made of zinc, which acts as an anode. The zinc content of the cell is lined from the inside with porous insulating paper. The cathode is a carbon rod having a brass cap.