Magnet, as the name suggests, means to abduct metals such as iron. With its power, a magnet can attract or repel materials, and it does this by creating a magnetic field in a wide radius. All materials on the earth, even the earth itself, have some kind of magnetic force, but because the amount of their magnetic force is small, it is not visible and they are not called magnets. The difference between magnets and other materials is that they can be used in making compasses, electric motors, microwaves, horns, televisions, speakers, and tape recorders. Many devices around us work with magnets, for example, the refrigerator door needs a magnet to open and close easily, or the same computer that we interact with every day needs a magnet to display images, or a train. which moves fast and its power is provided by the electromagnetism of the magnet. It is also interesting to know that even the house bell uses a magnet, so the magnet has an effective role in our life and is considered one of the most useful tools in today's world. /p>
Magnet models
Neodymium magnet: The mineral magnet that creates a lot of power due to Nd atoms is called neodymium magnet. Neodymium is an earth metal that is extracted from minerals and has a high magnetic ability. Neodymium magnets are made in different shapes such as cubic, cylindrical, spherical. Neodymium metal is silver in color and has a special luster, but it becomes dull and flaky when exposed to oxygen. In general, if you are looking for a strong magnet at a reasonable price, neodymium magnets are a good choice.
Electromagnet: If the generator of the magnetic field is an electric current, that magnet is called an electric or electric magnet. The main member of MRI devices includes an electric magnet, motor, generator, speaker and disk, and this type of magnet is also used to lift heavy parts by crane. The structure of an electromagnet is simple and includes a coil that generates magnetic force by passing electric current.
Disk magnet: The word disk refers to magnets that use a disk with a diameter of several millimeters. These products are widely used for the design of high efficiency motors and they can be driven in different ways and increase the variety of these magnets.
Shoe magnet: In horseshoe magnets, one side has a positive pole and the other side has a negative pole, and in these two areas, the properties of the magnet are more than other parts. Apart from the many uses of horseshoe-shaped magnets, they are also used in making children's toys and create fun things for children to play with horseshoe-shaped magnets.
Strip magnet: Combining minerals together and inducing magnetic properties to them can create a strip magnet, which is often found in refrigerator and freezer doors due to the narrowness of this type of magnet. They are used and due to the properties of magnets that these magnetic materials have, they are considered one of the most practical magnets in the home and in various devices.