Animating field lines

Author

Grosse, Constantino ; Tirado, Mónica

Author_Institution

Inst. de Fisica, Univ. Nacional Tucuman, Argentina

Volume

39

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

69

Lastpage

76

Abstract

The teaching of time-dependent electromagnetic phenomena could be made much easier if the evolution in time of the field lines could be visualized. In principle this can be achieved on a computer screen, but it is not a simple thing to do, since the process of drawing field lines is time consuming, and this rules out interactive animated presentations. In this work we restrict the problem to the representation of a superposition of uniform and dipolar fields and optimize the process making it extremely fast and precise. Special care is taken to ensure that the line density is everywhere proportional to the field intensity. The process is implemented as a Pascal procedure and exemplified by an animated representation of the field lines being expelled from a hollow conducting sphere which is suddenly immersed in a uniform field

Keywords

computer aided instruction; computer animation; electric fields; electric moments; electrical engineering computing; electrical engineering education; electromagnetic field theory; Pascal procedure; dipolar fields; electric field lines animation; field intensity; hollow conducting sphere; line density; time-dependent electromagnetic phenomena; uniform fields; uniform/dipolar fields superposition; Animation; Azimuthal component; Conducting materials; Conductivity; Education; Electromagnetic fields; Equations; Quantum computing; Visualization; Yttrium;

fLanguage

English

Journal_Title

Education, IEEE Transactions on

Publisher

ieee

ISSN

0018-9359

Type

jour

DOI

10.1109/13.485234

Filename

485234