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magnetic_permeability
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magnetic_permeability [2019/06/03 18:29] 127.0.0.1 external edit |
magnetic_permeability [2020/03/07 16:27] (current) Dr Stan Zurek [Magnetic permeability] |
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| [[Permeability of free space]] (or vacuum) is a universal physical constant defined in the [[international system of units]] (SI) denoted as $μ_0$ and its value defined exactly[(Jiles)][(BIPM_mu0>[[http://www.bipm.org/en/publications/si-brochure/ampere.html|Unit of electric current (ampere), SI Brochure: The International System of Units (SI) [8th edition, 2006; updated in 2014]], {accessed 2016-06-27})] as $μ_0 = 4 × π × 10^{-7}$ [[henry]] per [[metre]] which is approximately $μ_0 \approx 1.2566 × 10^{-6}$ H/m. | [[Permeability of free space]] (or vacuum) is a universal physical constant defined in the [[international system of units]] (SI) denoted as $μ_0$ and its value defined exactly[(Jiles)][(BIPM_mu0>[[http://www.bipm.org/en/publications/si-brochure/ampere.html|Unit of electric current (ampere), SI Brochure: The International System of Units (SI) [8th edition, 2006; updated in 2014]], {accessed 2016-06-27})] as $μ_0 = 4 × π × 10^{-7}$ [[henry]] per [[metre]] which is approximately $μ_0 \approx 1.2566 × 10^{-6}$ H/m. | ||
| - | The term "name" was proposed in 1885 by Olivier Heaviside. | + | The term "permeability" was proposed in 1885 by Olivier Heaviside. |
| ===== Practical significance of permeability ===== | ===== Practical significance of permeability ===== | ||
magnetic_permeability.txt · Last modified: 2020/03/07 16:27 by Dr Stan Zurek
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