What is the purpose of using a fuse in an electrical circuit?

The purpose of using a fuse in an electrical circuit is to break the circuit in case of overload or a short circuit. A fuse is a safety device designed to protect electrical circuits by preventing excessive current flow, which can lead to overheating and potentially cause fires or damage to electrical components. When the current exceeds the rated capacity of the fuse, the wire inside the fuse melts, effectively interrupting the circuit and stopping the flow of electricity. This protective feature is crucial for maintaining safety and ensuring that electrical systems operate within their designated limits. Therefore, the use of a fuse is an essential aspect of circuit protection.