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2005-63

Innovative Way of Teaching Magnetic Circuits with Minimum Vector Algebra

Bruno Osorno

California Sate University Northridge 18111 Nordhoff St

Northridge CA 91330 Email: bruno@ecs.csun.edu Phone: (818)677-3956

Abstract- In schools of electrical consequently these courses became engineering around the nation and prerequisites for electric energy conversion. abroad, some curriculums offer a In many programs nationwide there is no limited electromagnetic course or no required electromagnetic course prerequisite course at all. This is an issue of anymore and students end up not knowing curriculum constraints, thererefore; the basics of magnetic circuits. magnetic circuits need to be taught in other courses to be able to assure that However, the background necessary to the students are exposed to the assure understanding of the material comes material. An appropriate course that we from the first and second college physics use is the energy conversion class, courses. Furthermore, if the energy sometimes called “Electrical conversion course is offered, it is done as an Machines.” It is no wonder that almost elective in most institutions. all textbooks [1] used in the area have extensive chapters dealing with The effect of graduating students with an magnetic circuits. This paper is a study electrical engineering degree without an of an effective way of transitioning a energy conversion course is very topic from one area of electric detrimental to their basic knowledge. We will engineering to another (from discuss this issue further down the road in Electromagnetic Fields to Electric this paper. Staying focused on the transition, Power Systems) we will show how we teach the concepts and how the student’s background from their Symbols: regular physics classes is sufficient to understand, comprehend and learn the “E” electric field [V/m] material. “H” magnetic field intensity [A/m] 2 “B” magnetic field intensity [Webbers/m ] Or [T] “ φ ” magnetic flux [Webbers] or [Wb] 2 “D” displacement flux density [C/m ] 2 “J” current density [A/m ] II. MAGNETIC CIRCUITS I. INTRODUCTION Historically magnetic circuits are included in “Electromagnetics” courses and “Proceedings of the 2005 American Society for Engineering Education Annual Conference & Exposition Copyright 2005, American Society for Engineering Education”

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Osorno, B. (2005, June), Teaching Magnetic Circuits With Minimum Vector Algebra Paper presented at 2005 Annual Conference, Portland, Oregon. 10.18260/1-2--15364