1 qa 40 c2 r i nav erad q nu edielectric eapplied k v

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Unformatted text preview: 2R Erod ≈ Ering = ∆F = I ∆l × B µ0 µ0 2IπR2 2IπR2 ≈ (on axis, z ≫ R) µ = IA = IπR2 4π (z 2 + R2 )3/2 4π z 3 µ0 µ µ0 2µ Bdipole,⊥ ≈ (on axis, r ≫ s) (on ⊥ axis, r ≫ s) Bdipole,axis ≈ 4π r 3 4π r 3 Bloop = 1 −qa⊥ 4πǫ0 c2 r i = nAv ¯ Erad = σ = |q | nu Edielectric = Eapplied K ˆ ˆ v = Erad × Brad ˆ Brad = I = |q | nAv ¯ I = σE J= A 1 q 1 ∆V = − 4πǫ0 rf ri v = uE ¯ L R= σA 1 due to a point charge Erad c Q = C |∆V | Power = I ∆V K ≈ 1 mv 2 if v ≪ c 2 circular motion: 1 T ∆l = nλ = 2dsin(θ ) interference h λ= p 2π T 2dsin(θ ) = nλ diffraction f= Epsilon-zero Magne...
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This document was uploaded on 03/31/2014 for the course PHYS 272 at Purdue University-West Lafayette.

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