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Resistivity of copper,constantan and sil...

Resistivity of copper,constantan and silver are `1.7xx10^(-8)Omega, 3.91xx10^(-8)Omega and 1.6xx10^(-8)Omegam`respectively. Which has best conductivity ?

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Conductivity =1/Resistivity. As silver has the lowest resistivity, it ha sthe best conductivity.
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