Electrical fuse

A fuse is a safety device that breaks an electrical circuit when the current exceeds a safe limit. It contains a thin strip of metal that melts if too much current flows through it, interrupting the circuit. This protects more expensive components from damage and reduces the risk of fire caused by overheating. Without a fuse, electrical appliances could be damaged by excess current. This safety measure is known as sacrificial protection, as the fuse is destroyed to save the rest of the circuit.

What is the primary function of an electrical fuse?

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What happens to the fuse when the current exceeds a safe limit?

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How does an electrical fuse protect other components in a circuit?

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What could happen to an electrical appliance if it is subjected to excess current?

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Explain the concept of sacrificial protection in relation to fuses.

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