Fuses and Circuit - JSS3 Basic science Lesson Note

Fuses are like safety guards in electrical circuits. They are designed to break the circuit if there's too much current flowing through it, preventing damage to appliances or causing fires. Think of them as traffic lights: when the current exceeds a safe level, the fuse "blows" or melts, cutting off the flow of electricity. This protects the circuit from overheating.

 

Circuits, on the other hand, are like pathways for electricity to flow through. They are made up of wires and components like switches, lights, and outlets. Fuses are placed within circuits at strategic points to monitor the flow of electricity and act as a safety measure. So, in simple terms, fuses and circuits work together to keep electrical systems safe by controlling the flow of electricity.