The Earth's core?

Question

What would happen if the Earth's inner core was molten instead of solid, and the other core was solid instead of molten? How would this effect the Earth's magnetosphere? I've asked this question since high school and no one has been able to answer me yet.

Answer 1

First of this is impossible. The pressure in the core is so intense it forces the materials into a solid form. If it was molten it would melt the other layers and rise to the surface.

Answer 2

There would be nothing to cause the outer core to be solid and the inner core liquid, so I don't know how it would affect the magnetic field.

The inner core is much hotter than the outer core, but due to much greater pressure on the inner core, it is solid.

Core: The Earth has a iron-nickel core that is about 2,100 miles in radius. The inner core may have a temperature up to about 13,000°F (7,200°C = 7,500 K), which is hotter than the surface of the Sun. The inner core (which has a radius of about 750 miles (1,228 km) is solid. The outer core is in a liquid state and is about 1,400 miles (2,260 km) thick.