Not only in large sectors such as automotive, white goods, but also magnets are used in all areas of life. Magnets are used in machines with the power to easily remove heavy objects from small items and used in homes. There are a wide variety of different types of magnets, as you can imagine being available in so many different fields.
It is important to be able to distinguish between magnets. The working principle of all magnets is the North Pole and the South Pole created in the center. In this way, they can attract metals to themselves. It is information that most of us remember from our student years; the same poles push each other, the opposite poles attract each other.
How to distinguish electromagnet and permanent magnet?
Before giving information about how to distinguish electromagnet and permanent magnet, let’s take a closer look at the working principle of the magnet, the formation of the magnetic field, the permanent magnet and the electromagnet.
The magnetic field is generated by moving electrical charges. It is a vector field that describes the relative action and magnetic effect of electrical charges in magnetized materials. In everyday life, the effects of magnetic fields are often seen in permanent magnets that attract magnetic materials and attract or push other magnets. Apart from everyday life, magnetic fields are observed in a wide range of dimension scales, from subatomic particles to galaxies. When a charged particle moves at a constant speed without acceleration, it generates an electric current as well as a magnetic field.
A permanent magnet is made of carbon-rich materials. Captures objects made of materials that are magnetized and make up their own permanent magnetic fields. These objects include some alloys of iron, nickel, cobalt, rare earth metals. The most important feature of permanent magnets is that they can remain for a long time without losing their strength.
An electromagnet is a soft metal coil made to a magnet by passing the electric current through the surrounding coil. The greater amount of current flowing through the coil, magnetic force of the electromagnet is stronger. Generally, the coil is wound around a core of “soft” ferromagnetic material, such as mild steel, which greatly increases the magnetic field produced by the coil. Electromagnets can be switched on and off.
Electromagnets are used in all kinds of electrical equipment and scrap gardens, including hard disk drives, loudspeakers, motors and generators for collecting heavy scrap metal.