Electromagnetism is defined as magnetism produced by an electric current.”
In other words, it is the electricity part of what holds ourselves and every bit of matter in the universe together. This source of universal glue” is found within atoms themselves. As the name suggests, there are two different forces within electromagnetism – the electric force and the magnetic force. Before the early part of the last century, scientists studied electricity and magnetism as different sciences. No one knew the connection between them. Electromagnetism was found almost by accident, that “a flow of electric current (a movement of electrical charge) creates a magnetic force,” to use the words of Jack R.
White, the author of The Hidden World of Forces,” will explain the magnetic force in electromagnetism. Nearly 900 years ago, the Chinese discovered the natural permanent magnet – lodestone or magnetite. After experimenting with this rock, they discovered that it would always point itself north when floating on a piece of wood. This led to the creation of the magnetic compass.
To the Chinese in that time, magnetic force seemed like magic, but in the twentieth century, we use magnetic fields every day. We use them in things such as refrigerators, washing machines, dryers, and vacuum cleaners, all of which have electric motors. Magnetic force can be created in many different ways, but the two main ones are ferromagnetism, which is caused by the orientation direction of certain kinds of atoms, and electromagnetism, which is caused by passing an electric current through a conductor such as metal wire. Both of these magnetic fields, once created, are exactly the same. Electromagnetic radiation, by definition, is the transmission of energy in the form of waves having both an electric and a magnetic component.”
It is impossible for a wave to exist with just one or the other. The most common forms of electromagnetic radiation are radio waves and light waves. The Theory of Electromagnetic Fields was developed by James Clerk Maxwell of Scotland and published in 1865. His work was the first of many other experiments and research that other well-known scientists have used in their own experiments. Maxwell presented a set of equations that completely describe the electromagnetic field.
How it is produced and charged by currents, and how it is distributed in space and time. Accompanying the electric component is a magnetic component, which are both equal. It may be shown that electromagnetic waves transport energy as well as carry momentum. It may also be shown that any other accelerated charge, not necessarily a sinusoidal oscillating one, loses energy in the form of electromagnetic waves.
