Electric charge in motion:

When the atoms in a ferromagnetic material are aligned, a magnetic field exists. A magnetic field can be caused by the motion of electric charge carriers, either in the wire or in free space.

The magnetic field around the permanent magnet occurs from the same cause as the field around the wire which carries an electric current. The responsible factor in each case is the motion of electrically charged particles. In the wire, the electrons move along the conductor, which is being passed from atom to atom. In a permanent magnet, the movement of orbiting electrons takes place in such a manner that some sort of current is produced just by the way they move within individual atoms.

The Magnetic fields can be produced by motion of charged particles through space. The sun is ejecting protons constantly and helium nuclei. These particles carry the positive electric charge. Due to this, they have magnetic fields. When these fields interact with the geomagnetic field, the particles are enforced to change the direction. Charged particles from the sun are accelerated toward geomagnetic poles. If there is a solar flare, the sun ejects more charged particles than normal. When these arrive at geomagnetic poles, the result can disrupt the geomagnetic field. After that there is a geomagnetic storm, this creates changes in the earth's ionosphere, affecting the long distance radio communications at ceratin frequencies. If fluctuations are intense even wire communications and the electric power transmission can be interfered with. Microwave transmissions are immune to the effects of a geomagnetic storm, the wire links can be affected. Aurora is frequently observed at night when these events occur.