VFPt dipoles magnetic
Upper left: An ideal point-like dipole. The field shape is scale invariant and approximates the field of any magnetized volume with nonzero dipole moment at large distance.
Upper right: Discrete dipole of two opposite point-like magnetic poles at finite distance, a physical dipole. Note that isolated magnetic charges don't exist, but this configuration accurately represents the field of a very thin magnetized rod with magnetic poles at each end.
Lower left: Circular ring conductor loop with electric an current. An “Amperian loop”.
Lower right: Ideal continuous solenoid, a hollow cylinder with uniform circular current sheet around its circumference. This equally represents the B-field of a uniformely magnetized cylinder magnet.
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Magnetischer DipolEin magnetischer Dipol ist die einfachste beobachtete Form, in der Magnetismus auftritt. Alle komplizierteren magnetischen Strukturen lassen sich aus Dipolen zusammensetzen. .. weiterlesen