11. What is the resistivity of steel?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The resistivity of steel varies depending on its composition:
- Carbon steel: approximately 1.43 × 10⁻⁷ Ω·m
- Stainless steel: approximately 6.9 × 10⁻⁷ to 1.0 × 10⁻⁶ Ω·m
Steel has higher resistivity than pure metals like copper (1.68 × 10⁻⁸ Ω·m) or aluminum (2.82 × 10⁻⁸ Ω·m), making it a less efficient conductor but still suitable for structural electrical applications.
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