Lecture 7

Lecture 7 - Magnetic MagneticFields MagneticFields Tesla...

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agnetic Fields Magnetic Fields
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Magnetic Fields Tesla ‐‐ Weber/m 2 10 4 Gauss es / square inch @ ISU lines / square inch @ ISU B in Baltimore + 0.5 G
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NO MAGNETIC MONOPOLES () dv ∇• B = Bd s 0 = Integral v Δ ∫∫∫ s Δ ∫∫ = oint 0 B Point
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Oersted 777 851 1777-1851 e performed the first experiment He performed the first experiment deflecting a compass needle with an electric current.
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Ampere’s circuital law right hand rule B o μ ∇× = BJ a J
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Relationship Between urrent and Magnetic Field Current and Magnetic Field × = J 7 1 0 enries × o μ ∇× BJ 41 o Henries μπ ≡× × • = d s J d s o ∇× • ∫∫ Bd toke’s Stoke s
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Lecture 7 - Magnetic MagneticFields MagneticFields Tesla...

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