Looking for equation/proof of b field in a solenoid

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    B field Field Solenoid
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SUMMARY

The discussion focuses on deriving the magnetic field equation for a finite-length solenoid, emphasizing that the standard formula, μ₀nI, is insufficient for this scenario. Participants highlight the limitations of Ampere's Law for finite solenoids and express the need for a more comprehensive proof. The conversation suggests that calculating the magnetic field along the axis is straightforward, while determining it at any point inside the solenoid presents significant complexity.

PREREQUISITES
  • Understanding of electromagnetic theory, specifically solenoid behavior.
  • Familiarity with Ampere's Law and its limitations.
  • Knowledge of magnetic field concepts and calculations.
  • Basic calculus for evaluating integrals related to magnetic fields.
NEXT STEPS
  • Research the derivation of the magnetic field inside a finite solenoid using Biot-Savart Law.
  • Explore the mathematical techniques for calculating magnetic fields at various points within a solenoid.
  • Study the application of Ampere's Law in different geometries and its limitations.
  • Learn about numerical methods for simulating magnetic fields in complex configurations.
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Physics students, electrical engineers, and researchers interested in electromagnetism and magnetic field calculations in solenoids.

LiftHeavy13
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Hi guys, I'm looking for an equation and/or proof of the magnetic field produced inside a solenoid with a finite length (hence, it shouldn't just be "muNOT n I." For some reason I can't find a simple proof anywhere. I have no idea where to start. ampere's law obviously doesn't work, and that other law didn't seem of much use...


Thanks in advanced!
 
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Do you want it only on the axis (fairly simple) or anywhere inside the solenoid (very messy)?
 

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