Physics

Problem

The resistivities of three materials are: A:

2.8\times10^{-8}\,\Omega\,\text{m}

1.1\times10^{-6}\,\Omega\,\text{m}

4.9\times10^{-7}\,\Omega\,\text{m}

Arrange the materials in the increasing order of electrical conductivity and name the best conductor among them.