{
  "annotation_id": "d1fdf18a-2fce-4844-8b42-ee1ebdd19e7f",
  "date_created": "2026-03-02T18:00:56.871000Z",
  "date_modified": "2026-03-02T18:00:56.871000Z",
  "file_hash": "95fe41e85828ec0ff13ca4f8dedb08ee291412b8448c91ae4e0e295633881049",
  "private": false,
  "record": {
    "abstract": "This paper reports on a study of student understanding of induced EMF.\nStudents enrolled in a physics lab course completed a pretest and posttest that\nincluded questions about induced EMF. Following the posttest, some of those\nstudents participated in interviews in which they elaborated on their ideas.\nPretest and posttest data are presented in the article, as well as sample\ninterview text. After instruction in the lab course, most students were able to\nidentify that moving a magnet near a coil would induce a current. However,\nnearly half were unable to correctly determine the direction of the induced\ncurrent. Many students also demonstrated difficulty with the idea that an EMF\nis induced by a changing magnetic flux, not just a changing magnetic field.",
    "arxiv_id": "physics/0501093",
    "authors": [
      "Scott Secrest",
      "Ingrid Novodvorsky"
    ],
    "categories": [
      "physics.ed-ph"
    ],
    "title": "Identifying Student Difficulties with Understanding Induced EMF",
    "url": "https://arxiv.org/abs/physics/0501093"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3579bba2-f623-447d-9bfa-2c41fd65d1da",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}