Safety fuse wire, used in electrical circuits, is made of a material having.

High melting point

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High resistance

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Low melting point

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Low specific heat

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Solution

The correct option is C Low melting point
Fuse wire is used to break the circuit when the load is high so that higher currents does not damage the appliances. Higher load currents result in heating $(H = I^{2} R)$ of fuse wire. So fuse wires are made up of materials with lower melting points so that as soon as higher currents are passed it gets heated up and break by melting thus breaking the circuit.

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