At present, most of the magnetized cups seen in the market use ordinary magnets, regardless of the positive and negative poles. Therefore, consumers should carefully identify when choosing magnetized cups.
As we all know, only when opposite magnetic poles attract each other can magnetic lines of force shoot from the North Pole to the South Pole. When the opposite magnetic poles are arranged at both sides or ends of the cup, a central magnetic field is formed in the cup, which is the basic principle of magnetic field setting.
At present, there are some "magnetized cups", and magnetic poles are arranged on the cup cover and the cup bottom. When the cup cover moves back to the cup bottom, the cup bottom and the cup cover can attract each other. Under the bottom of such a "magnetized cup" and the bottom of the cup cover, different magnetic poles attract each other.
When the lid is put back to the normal position, the same sex under the lid and above the bottom of the cup repel each other. It is impossible for such a "magnetized cup" to form a central magnetic field, and it certainly does not have the function of a magnetized cup.
Some of them are blindly copied, without considering or understanding the setting of magnetic poles and the formation of magnetic fields. They put two or four magnets at will, regardless of polarity orientation, and even put two magnets on both sides of the cup and another horn magnet on the lid or bottom of the cup. This strange cup has chaotic magnetic lines and fields, so it is impossible to form a central magnetic field. The cup is filled with a horn magnet, which is low in magnetic force and heavy in weight. Y 65438+ is several thousand yuan per ton.