Physics 1 Problem Solutions 237

Physics 1 Problem Solutions 237 - Chapt. 31 Faradays Law of...

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Unformatted text preview: Chapt. 31 Faradays Law of Induction and Inductors 233 031 qmult 00132 1 1 1 easy memory: induced electric field 6. The induced electric field in is not caused by charge, but by a time-varying magnetic field in the inertial frame of the observer. But it is just like a charge-caused electric field in fundamental respects. It cases an electric force on a point charge according to the formula q vector E . It has the same vacuum energy density (1 / 2) E 2 . It source is different. But induced electric fields has a different distribution in space. Charge-caused electric fields from static charge have a distribution that allows potential (and thereby potential energy) to be defined which are actually convenient accounting mechanisms for electric field energy. The condition for allowing potential to be defined is that path integral integraldisplay B A vector E dvectors be independent of the path between between general points A and B or equivalently that contintegraldisplay vector E...
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