Why Cu, Al are used over tungsten, Fe Ni 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

Low melting point materials are used in fuses because as large currents pass through the circuit they will create heat that is enough to melt fuse and break circuit and save the appliances.

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Similar questions

C u {S O}_{4}

E_{{C u}^{2 +} / C u}^{o} = 0.34 V

E_{{F e / F e}^{2 +}}^{o} = 0.44 V, E_{{A l / A l}^{3 +}}^{o} = 1.66 V

E_{N i / {N i}^{2 +}}^{o} = 0.25 V, E_{{A g}^{+} / A g}^{o} = 0.80 V

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

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