Magnetic Field outside AC Solenoid

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SUMMARY

The discussion focuses on calculating the magnetic field (B) outside an AC-driven solenoid, addressing the lack of resources specifically for this scenario. The key insight provided is to adapt existing DC formulas by substituting the direct current (I) with a time-varying current function, such as i = 6sin(377). Additionally, participants recommend searching for "Transient field outside of solenoid" for further information.

PREREQUISITES
  • Understanding of AC circuit theory
  • Familiarity with magnetic field equations for solenoids
  • Knowledge of trigonometric functions and their application in physics
  • Basic grasp of time-domain analysis in electrical engineering
NEXT STEPS
  • Research the application of time-varying current in magnetic field calculations
  • Study the concept of transient fields in electromagnetism
  • Explore the mathematical derivation of magnetic fields outside solenoids
  • Investigate the use of simulation tools for visualizing AC magnetic fields
USEFUL FOR

Physicists, electrical engineers, and students studying electromagnetism, particularly those interested in the behavior of magnetic fields in AC circuits.

craig_e
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Hi

I have scoured the internet trying to find the right expression to calculate the magnetic field (B) outside of an AC driven solenoid. All i keep getting is stuff for DC driven or inside the solenoid.

Can anyone help?

thanks

Craig
 
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Hmmm

Without looking up any references, what comes to mind is simply plugging in the time domain function of the current into any DC formula you have.

For example.. the formula probably has a capital I in it... change that to small i then find the time domain function for i

like,

i = 6sin377

You'll end up with an answer that is also a trigonometric time varying function...
 
This might help:
http://www.physics.adelaide.edu.au/mathphysics/abstracts/ADP-AT-96-3.html

Try doing a google search using the term "Transient field outside of solenoid". You can also replace field with Magnetic or B-Field.

Good Luck
 
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