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# Plot field values along a user-specified line or...?

- To: femm@yahoogroups.com
- Subject: Plot field values along a user-specified line or...?
- From: "Johnson" <femmuser@yahoo.com>
- Date: Sat, 19 May 2001 02:16:26 -0000
- User-agent: eGroups-EW/0.82

    I'm new to the Femm. Maybe this is wrong question but I'll ask it
    anyway.

    When I want to display results I click on the "glasses icon". Then I
    define contours for line integrals
    and plots. Then I click on button, 7th from a left, "Plot field values
    along a user-specified line".

    The small pop-up box appears "X-Y plot of field values". Now I have
    choice of 7 plot types, like
    "Magnitute of flux density" or "normal field intensity" etc.

    Which one do I need in order to calculate electromotive force from a
    (electro)magnet to lets say,
    metal object. To be more precise, I want to calculate the strength
    that magnet will have on
    area(object). Something like in a example "of four of horseshoe-shaped
    electromagnets" - in brg.html,
    where it says
    Maximum Force 460 N
    Maximum Current 12 A
    How do you get those numbers, and what does Maximum current mean in
    this case?

    Which parameter I need to pay attention at, or do I need to click on
    button "define areas over which
    integration can be performed".

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