State the conductivity of metals and resistivity of insulators.

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(N/A) Metals are materials that conduct electricity very well. Their conductivity $(\sigma)$ is very high, typically in the range of $10^6$ to $10^8 \ S/m$.
Insulators are materials that do not conduct electricity. Their resistivity $(\rho)$ is extremely high, typically in the range of $10^8$ to $10^{20} \ \Omega \cdot m$.

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