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How can I protect magnet magnetic

by:Maghard      2020-09-15
The magnet is called a magnet for again, it is material and own existence of magnetic field around the object, there are two categories, natural and man-made. Artificial magnet is usually made of metal alloy, has the strong magnetism. Ferromagnetism, refers to a kind of material of magnetic state, has the spontaneous magnetization phenomenon. Some of the material under the action of an external magnetic field, after magnetization, even if the external magnetic field disappeared, still can maintain its state of the magnetization and magnetic, which is spontaneous magnetization. All of the permanent magnet with a magnet or the magnet. Basically magnet sex this concept including any show that the magnetic material when no external magnetic field. Based on the different display of magnetic materials and magnetic deeper understanding, scholars have made more precise definition for the concept. A matter of the original cell all the magnetic ions are pointing in the direction of its magnetic only referred to as the magnet. If only part of the ion direction pointing its magnetic field, is called the magnets. If the magnetic ions has pointed out the direction of the offset each other, just called the magnet. Material of magnetic phenomenon exists a critical temperature, under this temperature occurs. For the magnet and the magnet material, the temperature is known as the Curie temperature; For the magnet material, the temperature is called Neil.
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