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Published byMatteo Hatt Modified over 3 years ago

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Electromagnetisme

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Electric Fields Coulombs law: Electric potential: Gauss theorem:

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Stokes theorem: Line integral: Gauss theorem:

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++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ---------------------------- ---------------------------- + V Capacitor with dielectric d Field without dielectric: With dielectric we get polarization P in the material: D-feltet indføres som: For simple dielectrics (type 1: Electric susceptibility Electric permittivity -----”------ of vacuum Material parameters

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Capacitor with dielectric ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ---------------------------- ---------------------------- +V 0

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Magnetic fields Lorentz Force on particles: or in fluids: Find charges and currentsCalculate fields: E and B Calculate forces Magnetic field strenghMagnetic flux density permeabilty Vacuum field

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Calculate magnetic fields Biot and Savarts law: Amperes law Plasma physics: Include all currents and use μ 0 : Magnetic materials: From currents find the H-field From material find B=B(H,t)

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Maxwells ligninger Faradays lov Amperes lov - Poissons ligning Lorentzkraft

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Plasma frequency

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Plasma oscillations

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16.360 Lecture 19 Exam II Average: 77.8. 16.360 Lecture 19 Today Brief review of Electrostatics (I) 1.Maxwell equations 2.Charge and current distributions.

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