Definition of Magnetic Field

Magnets are used in many ways. With them it is possible to collect metal objects or make a compass to orient ourselves. On the other hand, many electrical appliances have a magnet in their engines and thanks to them the electricity.

In either case, the magnets generate a force magnetic field and the area around it is called the magnetic field. This field is actually the force that a particle experiences in movement within this region. The origin of this force comes from the movement of electric charges.

It is a singularity that exists in the whole of nature.

Electromagnetic theory

This theory focuses on the description of the laws governing electrical and magnetic phenomena. In this sense, electromagnetism studies the disturbance of space as a consequence of the action of a electric charge or a magnet.

In short, electricity makes it possible to create a magnetic field and, in parallel, the magnetism can produce electricity.

The earth has a strong magnetic field that works as a protective barrier

It could be said that the Earth behaves like an immense magnet. In this sense, its geographic north pole coincides with the magnetic south pole and, inversely, its geographic south pole coincides with the magnetic north pole.

More than 3,000 kilometers underground is the liquid core of the planet formed by molten iron. This substance provides an invisible force field, also known as the Earth's magnetic field.

Thanks to this protective shield, magnetism flows around the planet. Without the action of this force we would not be protected from the radiation of space and the weather space. On the other hand, the Earth's magnetic field acts as a protective barrier against solar action (the wind solar cannot penetrate the magnetic shield and remains floating around the Earth without causing damage).

If this field were to disappear, solar radiation could not be prevented from invading the atmosphere and such an effect would have devastating consequences

Scientists argue that in the same way that the electric currents at the bottom of the Earth produce the magnetic field, this field in turn produces the electric currents.

This feedback phenomenon is explained by the constant movement of liquid metal in the Earth's core. This implies that in the center of the Earth there is a kind of closed circuit where electrical forces produce magnetism and this provides electricity.

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