What is the role of a fuse in an electrical circuit?

The role of a fuse in an electrical circuit is to limit current flow. A fuse is a safety device designed to protect electrical circuits from excessive current that can cause overheating and potentially lead to fires or equipment damage. When the current flowing through the circuit exceeds a certain level, the fuse's wire element melts, breaking the circuit and stopping the flow of electricity. This helps to prevent damage to appliances, wiring, and reduces the risk of electrical hazards.

By controlling the amount of current that can pass through the circuit, fuses play a critical role in maintaining system integrity and safety in electrical installations. They are an essential component in safeguarding both the electrical equipment and the users from overload conditions.