PHY2061 R. D. Field Department of Physics chp34_4.doc University of Florida Faraday’s Law of Induction Magnetic Flux: The magnetic flux through the surface Sis defined by, ΦBSBdA=⋅∫rr. In the simple case where B is constant and normal to the surfacethen ΦB= BA. The units for magnetic flux are webbers (1 Wb = 1 Tm2). Rate of Change of the Magnetic Flux through Moving Loop: The change in magnetic flux, dΦB, in a time dtthrough the moving loop is, dΦB= B2dA-B1dA, with dA = vdtLso that
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Magnetic Field, Faraday, Law of Induction