Model Solenoid: Best Method & Troubleshooting

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    Modeling Solenoid
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Discussion Overview

The discussion revolves around the best methods to model a solenoid, particularly focusing on the calculation of magnetic field elements both on and off the axis of the solenoid. Participants explore theoretical approaches as well as empirical methods for troubleshooting issues encountered in calculations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the best method to model a solenoid and mentions difficulties with calculating off-axis elements.
  • Another participant seeks clarification on what is meant by "off axis elements."
  • A participant suggests that on-axis elements can be calculated using methods like Ampere's law, but questions how to approach calculations for off-axis elements.
  • One participant proposes an empirical approach using a metal slinky, a current source, and a flux meter to investigate the solenoid's behavior practically.
  • A later reply references the Biot-Savart law as a potential method for calculating magnetic fields, suggesting it may be relevant to the discussion.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the best method to model the solenoid, and multiple approaches are being considered, including both theoretical and empirical methods.

Contextual Notes

The discussion includes unresolved questions regarding the specific calculations for off-axis elements and the applicability of different laws, such as Ampere's law and the Biot-Savart law, which may depend on the definitions and assumptions made by participants.

eigenstaytes
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What would be the best method to model a solenoid? I tried writing a program that calculated the off axis elements of the solenoid but the value came out wrong. Any idea?
 
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What do you mean by "off axis elements"?
 
I drew up a quick diagram to show what I mean.

7WEA4Ek.jpg

The on-axis elements (along the Z-axis which is located along the center of the solenoid) can be calculated via some method. Ampere's law possibly? However, what would I have to do to calculate the values which are not along the Z-axis?
 

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