- #1
How the reluctance in a magnetic circuit depends on flux?
- Thread starter Aswin Sasikumar 1729
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SUMMARY
The reluctance in a magnetic circuit is defined as the length of the medium divided by the product of its permeability and the area of the cross-section. Reluctance does not change with flux, as length and cross-section remain constant, except in cases of magnetorestriction in ferromagnetic materials. The permeability of free space is a constant, while other materials exhibit similar values, with ferromagnetic materials displaying a distinct BH saturation curve. Understanding these principles is crucial for analyzing magnetic circuits.
PREREQUISITES- Understanding of magnetic circuits
- Familiarity with permeability in electromagnetism
- Knowledge of ferromagnetic materials and their properties
- Basic concepts of reluctance in magnetic fields
- Research the BH saturation curve in ferromagnetic materials
- Study the concept of magnetorestriction and its effects
- Explore the differences in permeability among various materials
- Learn about the applications of reluctance in magnetic circuit design
Electrical engineers, physicists, and students studying electromagnetism who are interested in understanding the behavior of magnetic circuits and the factors influencing reluctance.
- #2
Aswin Sasikumar 1729
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Length divided by product of permeability and area of cross sectionAswin Sasikumar 1729 said:
- #3
jim hardy
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That's a property of whatever is the medium through which you are pushing the flux.Try starting hereAswin Sasikumar 1729 said:
https://en.wikipedia.org/wiki/Permeability_(electromagnetism)
and would you be polite enough to rotate your image 90 degrees ccw?
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Aswin Sasikumar 1729
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Sorry for the inconveniencejim hardy said:
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jim hardy
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Aswin Sasikumar 1729 said:
It's okay, you're pretty new here.
Aswin Sasikumar 1729 said:
You already know the answer.
Length and cross section are not dependent on flux (excepting maybe magnetorestriction in iron)
that leaves permeability
which for free space is a constant
and
as that Wiki article explains for most other materials is very near the same constant
the big exception being ferromagnetic materials
which have the classic BH saturation curve.
Simplified comparison of permeabilities for: ferromagnets (µf), paramagnets (µp), free space (µ0) and diamagnets (µd)
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