character of fuse wire
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Fuse wire are used in electric circuits to protect home appliances from damaging by huge amount amount of current. Fuse wire should be such that it melts immediately when strong current flows through the circuit. The same is possible if its melting point is low and resistivity or the resistance is high.
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1. It is made up of alloy of lead and tin.
2. It has high resistivity.
3. It has low melting point.
4. It exceeds the permissible currents in the circuit.
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