phy-4600/lecture_notes/4-18

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2016-04-28 20:51:34 +00:00
𝐁⋅d𝐥 = B(s) sπs = μ₀[∫𝐉⋅n̂da + ε₀ d/dt ∫𝐄⋅n̂da]
𝐉⋅n̂da = 0
For capacitor:
│𝐄│ = σ/ε₀ ⇒ B(s) 2πs = μ₀ ε₀ d/dt σ(t)/ε₀ πs²