Excess charge in inductor due to selfinductance

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Discussion Overview

The discussion revolves around calculating the excess charge distribution in a 100 mH single layer inductor subjected to a 30 Hz voltage with an amplitude of 10 V. The focus includes theoretical aspects of charge distribution and its implications in the context of inductors.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the practicality of calculating the excess charge distribution, suggesting it is complex and rarely useful, emphasizing the importance of knowing the current through the inductor instead.
  • Another participant expresses a need for the peak value of charge, indicating an understanding that the dynamic charge distribution occurs not only on the surface but also within the volume of the copper wire.
  • A later reply raises the possibility that this topic might relate to unsolved problems in physics, hinting at the complexity and unresolved nature of the issue.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility or utility of calculating the excess charge distribution, with differing views on its relevance and complexity.

Contextual Notes

The discussion highlights limitations in the understanding of charge distribution in inductors, including the dependence on specific definitions and the unresolved nature of the calculations involved.

Maciej Orman
How does one calculate an excess charge distribution across 100 mH single layer inductor with 30 Hz voltage at amplitude of 10 V ?
 
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Maciej Orman said:
How does one calculate an excess charge distribution across 100 mH single layer inductor with 30 Hz voltage at amplitude of 10 V ?
You probably don't want to do that. The charge distribution will be much too hard to calculate, and will also be rarely used for anything. Generally you want to know the current through the inductor. You will certainly need the frequency for this.
 
willem2 said:
You probably don't want to do that. The charge distribution will be much too hard to calculate, and will also be rarely used for anything. Generally you want to know the current throught the inductor. You will certainly need the frequency for this.
I need the charge peek value... Current is simple to calculate... As I understand the dynamic charge distribution is not only on the surface of the wire but also in the volume of copper..
 
Looks as if this is one of the unsolved problems in physics or is it?
 

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