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Unformatted text preview: 4/6/10 1 C HAPTER 29 E LECTROMAGNETIC I NDUCTION – P ART 2 Vahé Peroomian I NDUCED E LECTRIC F IELDS For a stationary conductor, E ∫ ⋅ d l = ε = − d Φ B dt E XAMPLE 5 A long solenoid of radius R has n turns of wire per unit length and carries a timevarying current that varies sinusoidally as I = I max cos ω t, where I max is the maximum current and ω is the angular frequency of the alternating current source. (a) Determine the magnitude of the induced electric field outside the solenoid at a distance r > R from its long central axis. (b) What is the magnitude of the induced electric field inside the solenoid, a distance r from its axis? 4/6/10 2 1825: A MPERE ’ S L AW Maxwell: “One of the most brilliant achievements in science. The whole, theory and experiment, seems as if it had leaped, full grown and fullarmed, from the brain of the ‘Newton of electricity.’ It is perfect in form and unassailable in accuracy; and it is summed up in a formula from which all the phenomena may be deduced, and which must always remain the cardinal formula of electrodynamics.” B . d l = ∫ μ o I = μ o dq dt A MPERE ’ S L AW W ORKS , RIGHT ?...
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This note was uploaded on 06/03/2011 for the course PHYSICS 1c taught by Professor Peroomian during the Spring '10 term at UCLA.
 Spring '10
 peroomian
 Physics, Current, Electric Fields

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