What function does a battery serve in an electrical setup?

A battery serves as the source of electrical energy in a circuit. It provides the necessary potential difference (voltage) that drives the flow of electric current.

A battery is made by connecting two or more electric cells, which work together to supply higher voltage and longer-lasting energy compared to a single cell.

In an electrical setup, the battery:

• Supplies energy to operate devices
• Maintains current flow in a closed circuit
• Converts chemical energy into electrical energy

Without a battery or power source, no current would flow, and the circuit would not function.