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mt1-review

mt1-review - Midterm 1 Topics Electromagnetic Waves...

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Midterm 1 Topics Electromagnetic Waves Displacement Current: I disp = 0 d Φ E dt Poynting Vector: * Full Expression: S = 1 μ 0 E × B * Direction: Cross E with B * Magnitude: S = 1 μ 0 EB Maxwell ’s Equations (integral form) * Gauss’ Law: E dA = q in 0 * Gauss’ Law: B dA = 0 * Ampere’s Law: B ds = μ 0 I enc + μ 0 0 d Φ E dt * Faraday’s Law: E ds = - d Φ B dt Maxwell ’s Equations (Differential form) * Gauss’ Law: ∇ ◦ E = ρ 0 * Gauss’ Law: ∇ ◦ B = 0 * Ampere’s Law: ∇ × B = μ 0 J + μ 0 0 dE dt * Faraday’s Law: ∇ × E = - dB dt Light Pressure: * P = <S> C (perfectly-absorbed light) * P = 2 <S> C (perfectly-reflected light) Polarization: * Make sure you can find the component of the electric field that is transmitted through a polarizing filter. * Make sure you can use the incident and transmitted electric fields to relate incident and transmitted light intensities. * What happens to electric field and intensity when unpolarized- light is passed through a polarizer?

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