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Review of Maxwell's Equations and Key Concepts in Electromagnetism

This announcement covers essential topics in electromagnetism, including a review of Gauss's Law, Faraday's Law, and Ampere's Law with Maxwell's corrections. Students are reminded to ensure their clickers are registered for participation. The discussion includes the wave equation, the speed of light in terms of fundamental constants, and modifications needed for Maxwell’s equations to address electric and magnetic fields in materials. Additionally, quizzes are scheduled to test understanding of these concepts.

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Review of Maxwell's Equations and Key Concepts in Electromagnetism

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Presentation Transcript

  1. Announcements 1/11/12 • Prayer • 5 students didn’t have clickers registered • Story: about memorizing Maxwell’s equations… • Review: Gauss’s Law Gauss’s Law for B Faraday’s Law Ampere’s Law (with Maxwell correction)

  2. Review Quiz (not graded) • The wave equation has the form:

  3. Review quiz (not graded) • The speed of light can be written in terms of which two (other) fundamental constants? • e and me • e0 and m0 • h and kb • qe and qp • s and r

  4. Reading Quiz (graded; no discussion) • Which two Maxwell’s Eqns must be modified to describe electric and magnetic fields inside materials (the “macroscopic” versions) • and • and • and • and

  5. Reading Quiz • The dipole moment per unit volume has which symbol? • D • H • P • R • Z

  6. Modifying Maxwell’s Eqns

  7. Modifying speed of light

  8. P&W version of Wave Eqn

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