Document Type

Article

Publication Date

4-2000

Department

Physics

Language

English

Publication Title

American Journal of Physics

Abstract

We calculate the magnetic field around a current loop consisting of a regular N-sided polygon by successively rotating the field obtained from a straight, finite, current-carrying wire. This involves developing and applying a vector field rotation operator, which transforms vector fields the way a rotation matrix transforms scalar fields. Using this result, we explore the various magnetic field components about the current loop and notice an interesting structure that results from the geometry of the polygons. The magnetic field on the axis of the current loop as well as the field at all points around a circular loop are considered as limiting cases.

Comments

This published version is made available on Dickinson Scholar with the permission of the publisher. For more information on the published version, visit American Association of Physics Teacher's (AAPT) Website.

© 2000 American Association of Physics Teachers

DOI

10.1119/1.19461

Included in

Physics Commons

COinS