Magnetic poles really are an illusion, something apparent. In this video I explain what the lines of force of the magnetic field are and how they are generated when an electric current passes through an electric conductor. We come to the operation of a solenoid to see how the lines of force add up and give the appearance of creating magnetic poles at the ends when looking from the outside of the magnet or solenoid.

https://en.wikipedia.org/wiki/Magneti...
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https://es.wikipedia.org/wiki/Magnet
https://en.wikipedia.org/wiki/Solenoid
hyperphysics.phyastr.gsu.edu/hbase/magnetic/magfie.html
https://en.wikipedia.org/wiki/Electro...

Magnetic fields are primarily created by the movement of electric charges. This relationship is described by Ampère's law and BiotSavart law in the context of electromagnetism. Here are some common ways in which magnetic fields are created:

Electric Current: When an electric current flows through a conductor, such as a wire, a magnetic field is generated around the conductor. The stronger the current, the stronger the magnetic field generated.

Movement of Electric Charges: Even if there is no electric current in a conductor, but there are electric charges in motion, a magnetic field will be generated. This is evident in atoms and molecules, where electrons orbiting around the nucleus create magnetic fields.

Permanent Magnets: Some materials have their magnetic moments naturally aligned, creating a magnetic field without the need for an electric current. These materials are known as permanent magnets, and common examples include iron, cobalt, and nickel.

Moving Currents in Earth: Earth's magnetic field is generated by moving electric currents within its outer core of liquid iron. This convective motion generates a magnetic field that extends into outer space.

Electromagnets: These are devices that generate magnetic fields by the flow of electric current through a coil of wire. These are widely used in industrial applications, such as in electric motors, generators, electromagnets, etc.

In summary, magnetic fields are generated by the movement of electric charges. This relationship between electricity and magnetism is fundamental in electromagnetism and has a wide variety of applications in modern technology.

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