Classification of Metals, Conductors and Semiconductors
On the basis of the relative values of electrical conductivity(σ) and resistivity(ρ=1/σ), the solid are broadly classified as 1. Metals They have very low resistivity or high conductivity. Resistivity ρ ≈ 10⁻² – 10⁻⁸ Ωm and Conductivity σ = 10² – 10⁸ S/m (Siemens/metre) 2. Insulators They have high resistivity or low conductivity. Resistivity ρ ≈ 10¹¹ – 10¹⁹ Ωm and Conductivity […]
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