What is an electric fuse? What material is selected for fuse wire?
Electric fuse is a small piece of wire of a material having low melting point and high resistance. The device protects the circuit from overloading and short circuiting. A fuse wire is made of pure tin or of an alloy of copper and tin.
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Explain the use of an electric fuse.
Describe an experiment to illustrate the action of an electric fuse.
What is meant by rating of a fuse? Why should a fuse of proper rating be used?
What are the two types of electric fuse commonly used? Draw their diagrams. Give the circuit symbol of an electric fuse.
