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- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/21%3A_Magnetism/21.6%3A_Applications_of_MagnetismMass spectrometers use electric or magnetic fields to identify different materials.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/12%3A_Magnetism/12.02%3A_MagnetThe pole of the magnet that seeks the north pole is called the north pole of the magnet, while the opposite side is the south pole. When a ferrous material is placed in a magnetic field, the domains l...The pole of the magnet that seeks the north pole is called the north pole of the magnet, while the opposite side is the south pole. When a ferrous material is placed in a magnetic field, the domains line up with the magnetic field so that the north poles are all pointed in the same direction and the south poles are all pointed in the opposite direction.
- https://phys.libretexts.org/Courses/Skyline/Survey_of_Physics/09%3A_Magnetism/9.03%3A_Ferromagnets_and_ElectromagnetsAll magnetism is created by electric current. Ferromagnetic materials, such as iron, are those that exhibit strong magnetic effects. The atoms in ferromagnetic materials act like small magnets (due to...All magnetism is created by electric current. Ferromagnetic materials, such as iron, are those that exhibit strong magnetic effects. The atoms in ferromagnetic materials act like small magnets (due to currents within the atoms) and can be aligned, usually in millimeter-sized regions called domains. Domains can grow and align on a larger scale, producing permanent magnets. Such a material is magnetized, or induced to be magnetic.
- https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/22%3A_Magnetism/22.02%3A_Ferromagnets_and_ElectromagnetsAll magnetism is created by electric current. Ferromagnetic materials, such as iron, are those that exhibit strong magnetic effects. The atoms in ferromagnetic materials act like small magnets (due to...All magnetism is created by electric current. Ferromagnetic materials, such as iron, are those that exhibit strong magnetic effects. The atoms in ferromagnetic materials act like small magnets (due to currents within the atoms) and can be aligned, usually in millimeter-sized regions called domains. Domains can grow and align on a larger scale, producing permanent magnets. Such a material is magnetized, or induced to be magnetic.
- https://phys.libretexts.org/Bookshelves/Thermodynamics_and_Statistical_Mechanics/Book%3A_Thermodynamics_and_Statistical_Mechanics_(Arovas)/06%3A_Classical_Interacting_Systems/6.01%3A_Ising_ModelFor \(Z\), this means the trivial path \(\Gamma=\{\emptyset\}\), while for \(Y\ns_{kl}\) this means finding the shortest length path from \(k\) to \(l\). (If there is no straight line path from \(k\) ...For \(Z\), this means the trivial path \(\Gamma=\{\emptyset\}\), while for \(Y\ns_{kl}\) this means finding the shortest length path from \(k\) to \(l\). (If there is no straight line path from \(k\) to \(l\), there will in general be several such minimizing paths.) Note, however, that the presence of the string between sites \(k\) and \(l\) complicates the analysis of \(g\ns_\Gamma\) for the closed loops, since none of the links of \(\Gamma\) can intersect the string.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/07%3A_Magnetism/7.03%3A_Ferromagnets_and_ElectromagnetsCrucial to the statement that electric current is the source of all magnetism is the fact that it is impossible to separate north and south magnetic poles. (This is far different from the case of posi...Crucial to the statement that electric current is the source of all magnetism is the fact that it is impossible to separate north and south magnetic poles. (This is far different from the case of positive and negative charges, which are easily separated.) A current loop always produces a magnetic dipole—that is, a magnetic field that acts like a north pole and south pole pair.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/21%3A_Magnetism/21.1%3A_Magnetism_and_Magnetic_FieldsAn electric current will produce a magnetic field, which can be visualized as a series of circular field lines around a wire segment.
