Modelová Otázka ID 3469 - 
O konduktivitě platí:
Správná odpověď je: A, B, C
Konduktivita (měrná elektrická vodivost) σ představuje elektrickou vodivost G vztaženou na jednotku délky vodiče, platí pro ni tedy 
,
[σ] = S/m = S · m–1.
Konduktivita je zároveň rovna převrácené hodnotě rezistivity (měrného elektrického odporu) ρ, 
. Nejvyšší vodivost vykazují kovy (např. stříbro, měď, hliník). Konduktivita je dále závislá na teplotě a také na koncentraci vodivé látky.
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