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