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Resistivity of some material is given below. State which one will be the best conductor.

       

Material
Copper
Aluminium
Silver
Nickel
Resistivity (Ωm)
1.62 x 10 – 8
2.63 x 10 – 8
1.60 x 10 – 8
6.48 x 10 – 8


 From the above table we find that of all the metals, silver has the lowest resistivity (1.60 x 10 – 8 Ωm), which means that silver offers the least resistance to the flow of current through it. Thus, silver metal is the best conductor of electricity.