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Fields Of Magnetic Forces

image of the earth's magnetic field strength We glossed over the idea that the outer core of the Earth creates the magnetic field and the magnetosphere for the planet. How does it do it? The molten iron flows like a huge river. If you take a physics course, you'll learn that magnetism and electricity are very closely related. As the iron rivers flow, they create an electric current. That current creates the magnetic field that surrounds the planet. The magnetic field created in the center of the planet makes your compass point north and protects the Earth from solar winds.

image of the earth's magnetic field


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