All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.

There are two primary styles of magnets: everlasting magnets and electromagnets.

Permanent Magnets: Ferromagnetic Materials: Permanent magnets are normally made from ferromagnetic materials like iron, nickel, and cobalt, in addition to some alloys of rare earth metals. These materials have a excessive density of magnetic domain names, and their magnetic moments generally tend to align within the equal route. This alignment creates a sturdy internet magnetic subject. Magnetic Domains: At room temperature, these substances comprise many small areas (magnetic domains), each of which has a selected magnetic orientation. In an unmagnetized nation, these domains are randomly oriented, ensuing in a susceptible internet magnetic area for the entire material. When a ferromagnetic cloth is uncovered to a robust outside magnetic subject or is problem to a manner known as "magnetization," the magnetic domains align within the course of the outside area. Once the material is magnetized, it keeps its magnetism, becoming a everlasting magnet. This alignment of domain names creates a robust magnetic area within the cloth, and it's going to appeal to or repel different magnetic substances.

Electromagnets: Electromagnets are magnets created by means of passing an electric modern-day via a coil of wire. The magnetic subject of an electromagnet is transient and can be controlled by using adjusting the modern. When electric powered modern flows through the coil, it generates a magnetic discipline across the wire due to the alignment of the magnetic moments of the electrons in the cord. The more present day that flows, the stronger the magnetic area turns into, and it can be without problems grew to become on and rancid with the aid of controlling the electrical cutting-edge. The fundamental principle at the back of each everlasting magnets and electromagnets is the alignment of magnetic moments. In permanent magnets, the alignment is ready and retained within the fabric's structure, even as in electromagnets, the alignment is temporary and depending on the electric contemporary.

Magnetic fields are characterised by means of their magnetic poles. Every magnet has a north pole and a south pole. Like poles repel each other, and contrary poles attract. This conduct is why magnets keep on with some metals and can entice or repel different magnets.