PHYSICS 002C Lecture 10

PHYSICS 002C Lecture 10 - PHYSICS 002C Lecture 10 Serway...

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Unformatted text preview: PHYSICS 002C Lecture 10 April 20, 2009 Serway and Jewett Chapter 24 – Electromagnetic Waves Review - Chap 24.1 – Displacement current The sources of the electric field are • electric charges • magnetic pole currents – Sorry, no magnetic monopoles • changing magnetic fields The sources for the magnetic field are • magnetic poles – Sorry, no magnetic monopoles • conduction currents • changing electric fields (= displacement currents) Q: Does the magnetic field outside a long solid cylindrical conductor carrying an ac current ) sin( t kx I I ϖ- = show a change as one passes a gap in the conductor narrower than a wavelength? a) yes; b) no; c) can’t tell; d) depends on the conductor; e) why? The reality of the fields is an empirical fact because of the finite speed of light. Review - Chap 24.2 – Maxwell’s equations ∫ = ⋅ / ε Q A d E Coulomb-Gauss’ law ∫ = ⋅ A d B No magnetic monopoles!...
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This note was uploaded on 06/08/2009 for the course PHYS 2c taught by Professor All during the Spring '08 term at UC Riverside.

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PHYSICS 002C Lecture 10 - PHYSICS 002C Lecture 10 Serway...

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