{
  "annotation_id": "db3e940b-d53e-4b5c-8945-694c3b9a43fd",
  "date_created": "2026-03-02T18:01:10.922000Z",
  "date_modified": "2026-03-02T18:01:10.922000Z",
  "file_hash": "78ad8b09a8ce4bb429d93d489ac6236409068c61296149f00f66c7a4b0b2bd83",
  "private": false,
  "record": {
    "abstract": "A simple model of eddy currents in which current is computed solely from\nmagnetic forces acting on electrons proves accessible to introductory students\nand gives a good qualitative account of eddy current forces. However, this\nmodel cannot be complete; it ignores the electric fields that drive current\noutside regions of significant magnetic field. In this paper we show how to\nextend the model to obtain a boundary value problem for current density.\nSolution of this problem in polar coordinates shows that the electric field\nsignificantly affects the quantitative results and presents an exercise\nsuitable for upper division students. We apply elliptic cylindrical coordinates\nto generalize the result and offer an exercise useful for teaching graduate\nstudents how to use non-standard coordinate systems.",
    "arxiv_id": "physics/0607204",
    "authors": [
      "P. J. Salzman",
      "John Robert Burke",
      "Susan M. Lea"
    ],
    "categories": [
      "physics.ed-ph",
      "physics.gen-ph"
    ],
    "doi": "10.1119/1.1341249",
    "journal_ref": "American Journal of Physics -- May 2001 -- Volume 69, Issue 5, pp.\n  586-590",
    "title": "The Effect of Electric Fields In A Classic Introductory Physics   Treatment of Eddy Current Forces",
    "url": "https://arxiv.org/abs/physics/0607204"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "de822845-0018-4467-9b6f-9c57d08b65a9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}