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# Re: gauss

- To: femm@yahoogroups.com
- Subject: Re: gauss
- From: "vecerkaj" <vecerkaj@yahoo.com>
- Date: Wed, 06 Mar 2002 16:19:35 -0000
- In-reply-to: <a62p4v+c63m@eGroups.com>
- User-agent: eGroups-EW/0.82

    Hi

    I'm used to use SI units (kg, m, sec).

    If you use a simplified model (homogenous magnetic field, neglect
    magnetic resistance of iron, no flux leakage, ...) you can calculate
    force for simple electromagnet :
    F=(1/2)*B^2*S/mi0

    F (force on a pole) in Newtons, B (flux density in air gap) in
    Teslas, S (cross section area of pole) in sq.meters, mi0 (relative
    permitivity)=4*PI*10E-7 Hm-1

    For more accurate result you should make a model in FEMM and
    calculate it.

    Jiri Vecerka

- References:
  - gauss
    - From: "jthunder121870" <jthunder121870@yahoo.com>

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