# Explain What Electromagnetism Is.

Electromagnetism. With regard to the electromagnetic force that exists between electrically charged particles, electromagnetism is a subfield of physics. One of the four fundamental forces is the electromagnetic force, which manifests as electromagnetic fields like magnetic, electric, and light fields. The term electromagnetism describes the use of an electric current to produce a magnetic force. Changes in the magnetic field are used by electromagnetic induction to pass voltage through a conductor.Static electric fields and static magnetic fields—each with their own charges—are the two categories into which electromagnetic fields can be divided when discussing electromagnetism.Key Concepts Electric charges, magnetic moments, and the electromagnetic field interact physically to form electromagnetism. Either static, slowly changing, or in the form of waves, the electromagnetic field can exist. The laws of optics are observed by electromagnetic waves, also referred to as light.Electromagnetic force is created when a conductor is placed in a magnetic field and current flows through it. This interaction between the magnetic field and the current results in force. The force is known as the electromagnetic force.

## What is electromagnetic in nature?

Motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment are just a few examples of other electrical devices that frequently include magnets as part of their design. An electric current causes magnetism, which is electromagnetism. A magnetic field encircles a wire in circles when current flows through it. The flow of current through a wire determines the direction of the magnetic field that results.Electricity is used by electromagnets to produce a magnetic field. The current flows through the wire when it is introduced, whether from a battery or another source of power. As a result, a magnetic field is produced around the coil of wire, magnetizing the metal as though it were a permanent magnet.It functions according to the idea of the magnetic effect of electric current. It consists of a lengthy coil of insulated copper wire encircling a soft iron core that only becomes magnetic when an electric current flows through the coil.Hans Christian ersted, a Danish physicist, discovered in 1820 that a wire with an electric current flowing through it generated a magnetic field. In fact, an electromagnet is a device that generates a strong magnetic effect by wrapping a wire around an iron core and passing current through it.Because it combines the once-distinct electric force and the magnetic force—which are actually the same fundamental force—it is known as the electromagnetic force. Of the four fundamental forces, the electromagnetic force is one. The elements electricity and magnetism combine to form electromagnetism, a fundamental force in the universe. Electromagnetic force is another name for it.A magnet that runs on electricity is known as an electromagnet. In contrast to a permanent magnet, an electromagnet’s strength can be altered by varying the amount of electric current passing through it.Permanent magnets, transient magnets, and electromagnets are the three different categories of magnets.Two common varieties of electromagnets are parallel-pole magnets and flat-faced electromagnets. When a magnet’s entire face is in direct contact with a smooth, flat surface, flat-faced magnets are employed.