What causes Earth’s magnetic field?
| What causes Earth’s magnetic field? |
Earth's magnetic field that is also called the geo-magnetic field is a field that extends from the interior of the plant that is the core to the outer space where it comes into contact with solar winds.
This field is made by the electric currents and by the motion of convective currents which consist of a mixture of molten ion and nickel in the earth's outer core. The heat inside the core which is more than 1043 K heats up the natural process of the geodynamo. The earth's magnetic field acts like a real magnet.
The convection of molten iron with the outer liquid core along the Coriolis effect caused by the rotation of the planet organized these electrical currents in rolls aligned along the north and south poles. The currents that are created by the earth's core started about 3,450 billion years ago.
The north magnetic pole actually shows the south pole of the earth's and the south magnetic pole represents the north pole. As of 2017, the earth's north magnetic pole was located near Siberia.
The magnetosphere is the region that is above the ionosphere and is defined by the extent of the earth's magnetic field. The field extends over several thousand km into space, due to the reversals in the magnetic properties of the planet thy help us in understanding the movement of the ocean floor and plate tectonics.
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