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How a Cell Makes Electricity
- Cells and batteries are portable sources of electricity.
- They use chemical reactions to make electric current.
- The current can light a lamp, make a magnet, or heat a wire.
- Let us start with one of the earliest cells ever made.
Example 1 — Torch Cell
- A cell is put in a torch.
- Chemicals inside it make a current.
- So the torch bulb lights up.
Example 2 — Toy Battery
- A battery is placed in a toy car.
- It supplies current to the motor.
- So the toy car moves.
Important Points
- A cell or battery makes current from chemical reactions inside it.
- These reactions slowly use up the chemicals.
Definition — Cell
A cell is a device that makes electric current from chemical reactions taking place inside it.
