Lecture 5 Lecture Notes

Lecture 5 Lecture Notes - Lecture Notes Page 1 2.4.3...

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2.4 Inductance as electromotive force: 2.4.1 Faraday's law: fixed loop Lenz' law: action of induced current attempts to counteract change in flux! 2.4.2 Motional Electromotive Force (See Griffith 7.1.3) Argumentation movement of wire moves charges through magnetic field => forces on movable charges => current in equilibrium with force (Ohm) (neglecting flux created by induced current!) Lec 05 - 14. Jan Tuesday, January 13, 2009 10:26 PM
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Unformatted text preview: Lecture Notes Page 1 2.4.3 Inductance and self inductance (Griffith 7.2.3) Given loop C with current I(x) with relative coordinate unit vector: (quasi-static approximation) Loop area Now (exact) for suitable vector field (vector potential) here self inductance (Biot-Savart) Lecture Notes Page 2 Similarly: flux induced through loop by field of loop mutual inductance Note: Symmetry Lecture Notes Page 3...
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