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How does a fuse wire protect electrical appliances?
 
Due to , some materials in the wires quickly and break when a large amount of current is passed through them. Electric fuse wire connected in series in electrical circuits uses a material with a .
 
There is a safety limit for the current to flow in the circuit. The wire gets overheated and melts if the exceeds this limit due to .
 
In this scenario, the fuse will when the circuit is broken. This safety device prevents the circuits from any damages occurring due to fire.