Composite wire section as it relates to induction

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Discussion Overview

The discussion revolves around the influence of a conductor's cross-section on inductive efficiency and directionality, particularly in the context of a composite wire section that includes dielectric and conductive materials. Participants explore the implications of asymmetrical wire shapes and their potential effects on electromagnetic forces.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants propose that a conductor's cross-section can influence inductive efficiency and directionality.
  • One participant suggests that an asymmetrical wire, with a smooth side and a wavy side, may result in asymmetrical electromagnetic forces relative to the centerline of the wire.
  • Another participant connects the discussion to the skin effect, indicating it may play a role in the behavior of the conductor.
  • It is noted that the effective inductivity may also depend on the frequency and the skin effect.

Areas of Agreement / Disagreement

Participants generally agree that the cross-section of a conductor can influence inductive properties, but the discussion remains unresolved regarding the specifics of how asymmetry and composite materials affect these properties.

Contextual Notes

There are limitations regarding the assumptions made about the behavior of composite materials and the effects of wire geometry, as well as the dependence on frequency and skin effect, which remain unresolved.

tetra
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Stuff I'm wondering about:

* can/does a conductors' cross-section influence inductive efficiency and/or directionality?

* consider a 'wire' made from a dielectric material, with a conductive material evaporatively deposited on it's surface. if this wire were asymmetrical in section, e.g. it was mostly flat, with one side smooth, and the other side wavy, with far more surface area on that side, wound into a flat spiral coil like a disk (with smooth side being 'heads', and wavy side being 'tails'). Would the electromagnetic forces also be asymmetrical relative to the centerline of this wire, being more strong on the wavy side?

* am I way, way off base here?

Thanks
 
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tetra said:
Stuff I'm wondering about:

* can/does a conductors' cross-section influence inductive efficiency and/or directionality?
Yes it does.
 
@zoki85 Thanks for replying to #1. I intuited the same. Do you have any idea about the second question? My thought is yes about #2 (asymmetrical sides) as well, and I think it has to do with the skin effect of the conductor. I'm not sure about the composite behavior though - or if a 'hollow' wire makes a difference in the overall behavior.
 
Yes, the effective inductivity also depends on the frequency (and skin effect)
 

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