Magnetism is a very interesting topic to talk about because of magnets. Some of these magnets lose their magnetism over time. This is a vital fact for consumers because it is better to purchase a real magnet rather than an artificial magnet due to the loss of magnetism. There are many types of magnets in the world today, but the electromagnet is by far the most common. An electromagnet is made of coils and when connected to electricity it produces an electrical charge. Electromagnets have the ability to be turned on and off and are much more powerful than regular magnets. The conventional approach has been to use fields generated by electromagnets, which require large amounts of current, are bulky, and significantly limit the applications of magnetic materials. Sun and his colleagues studied a newer method known as electric field control, potentially more space and energy efficient. As part of this research, Sun began studying a new group of composite materials, called multiferroic composites, five years ago. Magnets have been around for hundreds of thousands of years and have been used by many different cultures throughout that time. A strong and efficient magnetic field was produced by an electric field in a layered multiferroic composite, which used a negligible amount of energy. In contrast, conventional electromagnets typically need hundreds of watts of power consumption to generate such a magnetic field, Sun said. Effective control of the electric field of magnetism in magnetic layered structures has significant technological implications,” Sun said. “Compact and almost passive electric magnetic control of magnetism could lead to more compact wireless communication systems and radar systems with significantly reduced power consumption and longer battery life. It could also lead to new magnetic random access memory devices and other new spintronic devices. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay Magnetism is a class of physical phenomena mediated by magnetic fields. The electric currents and magnetic moments of elementary particles give rise to a magnetic field which acts on other currents and magnetic moments. The best-known effects occur in ferromagnetic materials, which are strongly attracted to magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Only a few substances are ferromagnetic; the most common are iron, nickel and cobalt and their alloys. The prefix ferro- refers to iron, because permanent magnetism was first observed in the magnet, a form of natural iron ore called magnetite, Fe3O4. Magnets have been useful over the years because they can hold two things together simply by the strength of the metal in the magnet. all other materials are influenced to some extent by a magnetic field, by several other types of magnetism. Paramagnetic substances such as aluminum and oxygen are weakly attracted to an applied magnetic field; diamagnetic substances such as copper and carbon are weakly repelled; while antiferromagnetic materials such as chromium and spin glasses have a more complex relationship with a magnetic field. The force of a magnet on materials.