Unformatted text preview: Chapt. 31 Faraday’s Law of Induction and Inductors 235 031 qmult 00300 1 1 3 easy memory: motional emf Faraday’s law 17. The is E = contintegraldisplay ( vectorv × vector B ) · dvectors = − d Φ dt , where E is the induced emf around a closed contour, vectorv is the velocity of the contour in the observer’s inertial frame of reference, vector B is the magnetic field which is constant in time in the observer’s inertial frame, Φ is the magnetic flux linked by the contour, the time derivative is for variations in the contour with time. and the minus sign along with other conventions gives the direction of the emf in the contour. Unlike the Maxwell-Faraday equation Faraday’s law, the is not a fundamental law of classical electromagnetism. It a derived result from the fundamental laws of classical electromagnetism (i.e., Maxwell’s equations). If the conditions of the derivation are not met, can fail. This is not a failure of classical electromagnetism which is exact in the classical limit, but just a case where a particular result...
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This note was uploaded on 11/16/2011 for the course PHY 2053 taught by Professor Buchler during the Fall '06 term at University of Florida.
- Fall '06