Constants & Units · constant
Vacuum magnetic permeability
μ₀ = 1.256 637 061 27(20) × 10⁻⁶ N A⁻²
- Unit
- N A⁻²
- Value
- 1.256 637 061 27(20) × 10⁻⁶
- Exact
- no
- Note
- The magnetic counterpart of ε₀; together they give c = 1/√(ε₀μ₀), Maxwell's great discovery.
- Symbol
- μ₀
- Category
- Electromagnetic
- Numeric
- 1.25663706127e-06
- Uncertainty
- ±1.6 × 10⁻¹⁰ relative
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