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Magnet Formulas

www.netdenizen.com/emagnet/

Magnet Formulas MAGNET FORMULAS A small web site devoted to the vanishing art of practical magnet design without FEA (Finite Element Analysis). The Basics    Maxwell and His Equations The Law of Biot Savart Mysterious Units of Magnetics   ...


Off axis field due to a magnetic dipole moment

www.netdenizen.com/emagnet/offaxis/mmoffaxis.htm

... the field at any point in space surrounding the magnet.   where, B xo is the measured field strength at some point, x m meters from the center of the magnet and on its axis. Magnet Formulas web site, © 2005 by Eric Dennison . I am ...


On axis field due to a current loop

www.netdenizen.com/emagnet/solenoids/ilooponaxis.htm

... due to a magnetic dipole: where A is the area of the current loop, or Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet web site and encourage you to visit this work in ...


Magnetics: The Basics

www.netdenizen.com/emagnet/thebasics/maxwelletc.htm

... is no closed solution to this integral for most interesting configurations of current filam-ents and vectors r . Oh well.   Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet ...


Axial field of a finite, thin shell solenoid

www.netdenizen.com/emagnet/solenoids/thinsolenoid.htm

... point, in meters. Special Case: x 1 =(-x 2 )   The magnetic field measurement point is at the center of the solenoid. Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet web ...


Axial field of a finite solenoid

www.netdenizen.com/emagnet/solenoids/solenoidonaxis.htm

... a given inner diameter and input power will deliver the highest central field strength when these conditions are met.   Magnet Formulas web site, © 2005 by Eric Dennison . I am de-veloping an updated and expanded version of the magnet web ...


Off-Axis Axial field of a finite solenoid

www.netdenizen.com/emagnet/offaxis/solenoidoffaxis.htm

... in turn, credit: M.W. Garrett, J. Appl. Phys. 22, 9, Sept. 1951. Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet web site and encourage you to visit this work in progress ...


Magnetic field formulas direct from Maxwell

www.netdenizen.com/emagnet/solenoids/frommaxwellonly.htm

... constant (1.26x10 -6 H/m) i is the current in the wire, in amperes. N is the total number of turns of wire in the toroid. Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet ...


Axial field of a real Helmholtz coil pair

www.netdenizen.com/emagnet/helmholtz/realhelmholtz.htm

... coils with a square cross section, the following hold true: and...   Magnet Formulas web site, © 2005 by Eric Dennison . I am developing an updated and expanded version of the magnet web site and encourage you to visit this work in ...


Off axis field due to a current loop

www.netdenizen.com/emagnet/offaxis/iloopoffaxis.htm

... off axis fields due to a current loop .     "Wait a second... " "I thought this web site had something to do with magnet design without computers. What gives?" You don't have to use a computer to use the formulas on this page. Just ...


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