The property of electric current which is applicable in the fuse wire is

The electric fuse operates based on the heating effect of electric current, also known as Joule heating [2]. When current flows through a conductor, it encounters resistance, converting electrical energy into thermal energy. A fuse wire is specifically designed with a material having an appropriate melting point [3]. Under normal conditions, the heat generated is dissipated; however, during a short-circuit or overloading, the current abruptly increases [2]. This surge causes the temperature of the fuse wire to rise rapidly until it reaches its melting point [3]. Once the wire melts, the circuit is broken, stopping the flow of electricity and protecting appliances from damage [3]. While current also exhibits magnetic and chemical effects, these are utilized in devices like electromagnets and batteries rather than safety fuses [1].

Sources

1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 4: Electricity: Magnetic and Heating Effects > Snapshots > p. 58
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 12: Magnetic Effects of Electric Current > 12.4 DOMESTIC ELECTRIC CIRCUITS > p. 205
3. [3] Science , class X (NCERT 2025 ed.) > Chapter 11: Electricity > 11.7.1 Practical Applications of Heating Effect of Electric Current > p. 190