PHY2061 R. D. Field Department of Physics chp38_5.doc University of Florida Finding the Missing Term (integral method) We are looking for a new term in Ampere’s Lawof the form, rrBdlIddtCE⋅=+∫10µδΦ, where δis an unknown constant and IJdAEdASES=⋅=⋅∫∫rrrrΦ, where Sis any surface bounded by the curve C1. Case I (use surface S1): If we use the surface S1which is bounded by the curve C1then rrrrrlIdJEtdAICES+=+⋅=10010µδ∂Φ, since E = 0 through the surface S1. Case II (use surface S2): If we use the surface S2which is bounded by the curve C1then rrrrrlIdJEtICES+=+=110εΦ, since J = 0 through the surface S
This is the end of the preview. Sign up
access the rest of the document.