Deriving the circuit approximation of a magnetic circuit

  • #1
squelch
Gold Member
57
1

Homework Statement



For the magnetic circuit:
Derive the circuit approximation.
Compute all magnetic fluxes if the total solenoid current is I.
media%2F470%2F4701a26b-0e91-4529-b95c-46d0b183c325%2FphpGPl0HD.png


Homework Equations



Rm = L / μS



The Attempt at a Solution


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Mostly, right now, I'm just trying to determine the magnetic circuit equivalent. From there it seems like simple circuit analysis. (Note that in my recreation of the diagram, I failed to add in the small L5 annotated at the top right of the larger subcircuit).
IMG_0267.jpg


Is my intuition correct in treating the different media as a parallel of three resistances? This one is a bit strange, I can't find any solid worked examples of this type with differing media.

edit: The two resistances Rg1 and Rg2 represent the air-gap.
 

Answers and Replies

  • #2
18,375
8,242
Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 

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