NotesFAQContact Us
Collection
Advanced
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1025037
Record Type: Journal
Publication Date: 2013-Nov
Pages: 2
Abstractor: As Provided
Reference Count: 8
ISBN: N/A
ISSN: ISSN-0031-921X
An Alternative Introduction to Maxwell's Displacement Current
Reich, Gary
Physics Teacher, v51 n8 p485-486 Nov 2013
In introductory texts Ampere's law is generally introduced in the steady-current form ?B · dl = µ[subscript 0]I, and it is later extended to a more general form involving the so-called displacement current I[subscript d], ?B · dl = µ[subscript 0](I + I[subscript d]) · (1). Here the line integral is to be taken along a closed "Amperian" loop, and "I" is the net conventional current that penetrates any surface bounded by the loop. In its steady-current form (without I[subscript d]), Ampere's law is used to find the magnetic field generated by highly symmetric arrangements of current-carrying wires, for example, an infinite straight line of current or an infinite solenoid, in analogy with Gauss's law.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A