The core of the melting core theory consists of a solid metal core surrounded by a molten layer of liquid metal. In this article I will explain the reason behind the belief that the earth has a nugget and the important discovery that led to this commonly accepted theory. It is very reasonable to agree with this theory in answering the logical evidence of the central problem of the earth. Evidence includes information on the composition of the Earth's elements, the cause of the Earth's magnetic field, and the possibility of the formation of the Earth.
The heart of the earth is an electromagnet. The Earth's crust is solid, but the center of the earth is surrounded by a mixture of molten iron and nickel. The earth's magnetic field is caused by the current flowing through the melting core. These streams are hundreds of miles wide and flow at thousands of miles per hour as the Earth rotates. A strong magnetic field passes through the center of the earth and passes through the Earth's crust to the universe. A computer generated picture from a mathematical model shows a solid core area (inner circle) surrounded by a molten outer core (the area between the two circles). The current flows through the outer core and the force lines shown in yellow pass outside through the rest of the earth. If the Earth spins faster, it will have a stronger magnetic field. If it has a larger liquid core it will also have a stronger magnetic field.
When iron reaches approximately 4000 miles below the center of the earth, it begins to accumulate and forms a solid core surrounded by molten metal. The effects caused by the movement of molten metal in the outer planetary core and the rotation of the entire planet create a magnetic field. As the conductive fluid moves through the existing magnetic field, current is induced, resulting in a second magnetic force distribution. Second, the second magnetic field augments the original magnetic field and forms an autonomous system
Since the magnetic field surrounds the current, we speculate that the circulating current of the core of the Earth's molten metal is the origin of the magnetic field. The current loop provides a place similar to the Earth. The magnetic field measured on the surface of the earth has a Gaussian distribution of about half, and in the northern hemisphere it is inclined toward the earth. The amplitude of the surface of the Earth is 0.3 to 0.6 Gauss. The earth's magnetic field is due to the generator effect of the circulating current, but the direction is not constant. Rock samples of different ages in the same place have different permanent magnetization directions. According to the report, there was 171 evidence of magnetic field reversal during the past 71 million years.