what is the name of the area surrounding earth which is influenced magnetic filed (shown in the diagram)? explain why the north geographic pole is actually the earth's south magnetic.
please help
The area surrounding the Earth that is influenced by its magnetic field is called the magnetosphere. It is essentially a protective shield formed by the Earth's magnetic field against the incoming solar wind, which is a stream of charged particles flowing from the Sun.
Now, let's address the second part of your question: why the North geographic pole is actually the Earth's south magnetic. To understand this, we need to know about the nature of magnetic poles and how the Earth's magnetic field is generated.
The Earth's magnetic field is mainly generated by the movement of molten iron and nickel in its outer core. This creates a complex electrical current system, known as the geodynamo. The Earth acts as a giant bar magnet, with its magnetic field lines extending from the North magnetic pole to the South magnetic pole.
However, it's important to note that the Earth's magnetic field does not align perfectly with its geographic axis or rotation. Instead, it is slightly tilted. The geographic North pole of the Earth is defined as the point at which the Earth's rotation axis intersects the surface in the North. On the other hand, the magnetic South pole is located near the geographic North pole.
Magnetic poles are characterized by their attraction or repulsion patterns with respect to other magnetic objects. Like poles repel each other, while opposite poles attract each other. By convention, the Earth's North geographic pole, which is located in the Northern Hemisphere, is referred to as the North magnetic pole, even though it behaves like a south pole.
This convention is based on the fact that the Earth's magnetic field lines emerge from the South magnetic pole and enter the North magnetic pole, similar to how the magnetic field lines of a bar magnet emerge from the South pole and enter the North pole.
In summary, the Earth's North geographic pole is referred to as the North magnetic pole because it behaves like a south pole magnetically, as the Earth's magnetic field lines enter the North pole and exit the South pole. This terminology is a convention used to maintain consistency and compatibility with the established understanding of magnetic properties.