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English: Gradients in magnetic field strength result in a magnetic pressure force perpendicular to the field in the direction of decreasing magnetic field strength. Here, the strength of the magnetic field is depicted by the density of the vertical field lines and the black/white gradient, and the magnetic pressure force / is depicted by a horizontal arrow.
The magnetic field of permanent magnets can be quite complicated, especially near the magnet. The magnetic field of a small [note 6] straight magnet is proportional to the magnet's strength (called its magnetic dipole moment m). The equations are non-trivial and depend on the distance from the magnet and the orientation of the magnet.
English: Magnetic tension is a restoring force with units of force density that acts to straighten bent magnetic field lines. The force, depicted by a red arrow, is directed towards the center of curvature in blue and has magnitude κ B 2 {\displaystyle \kappa B^{2}} where κ {\displaystyle \kappa } is the curvature and B {\displaystyle B} is ...
Another class of design is the magnetic mangle (B), proposed by Coey and Cugat, [20] [21] in which uniformly magnetized rods are arranged such that their magnetization matches that of a Halbach cylinder, as shown for a 6-rod design. This design greatly increases access to the region of uniform field, at the expense of the volume of uniform ...
The following other wikis use this file: Usage on hr.wikipedia.org Izodinama; Izomagnetične linije; Usage on it.wikipedia.org Campo geomagnetico
Magnetic field (green) induced by a current-carrying wire winding (red) in a magnetic circuit consisting of an iron core C forming a closed loop with two air gaps G in it. In an analogy to an electric circuit, the winding acts analogously to an electric battery, providing the magnetizing field , the core pieces act like wires, and the gaps G act like resistors.
The rotating magnetic field is the key principle in the operation of induction machines.The induction motor consists of a stator and rotor.In the stator a group of fixed windings are so arranged that a two phase current, for example, produces a magnetic field which rotates at an angular velocity determined by the frequency of the alternating current.
Such ordering can be studied by observing the magnetic susceptibility as a function of temperature and/or the size of the applied magnetic field, but a truly three-dimensional picture of the arrangement of the spins is best obtained by means of neutron diffraction. [1] [2] Neutrons are primarily scattered by the nuclei of the atoms in the ...