Why are copper, aluminium used over tungsten, iron, nickel to make fuses?

They are cheap

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They have low melting point

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Fe, Ni are costly

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Cu is a bad conductor

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Solution

The correct option is B They have low melting point
As large currents pass through the circuit they generate heat that is enough to melt the fuse wire, thus breaking the circuit. This saves the appliances connected to the circuit.

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