Magnetostatics

Magnetostatics is the study of magnetic fields in systems where the electric currents are steady (not changing with time).[1]

Magnetostatics is widely used in magnetic storage devices such as in computer memory. Magnetostatic focussing can be got by a permanent magnet or by passing a current through a coil of wire whose axis coincides with the beam axis.

References

  1. Aharoni, Amikam 1996. Introduction to the theory of ferromagnetism. Oxford:Clarendon Press. ISBN 0-19-851791-2