why current is formed in the molten core of earth
Answers
Answer:
The magnetism of Earth's core is due to the electrical conductivity of the liquid metal it contains. The magnetic field is thought to arise according to the so-called geodynamo model: the molten core's movement gives rise to electric currents that in turn produce the magnetism of Earth.
Answer:
The magnetism of Earth's core is due to the electrical conductivity of the liquid metal it contains. The magnetic field is thought to arise according to the so-called geodynamo model: the molten core's movement gives rise to electric currents that in turn produce the magnetism of Earth.The physical processes behind the two phenomena are different. When heated, a permanent magnet loses its magnetism because its relatively well-aligned magnetic domains, which are tiny magnets, get agitated and more randomly aligned.
The magnetism of Earth’s core is due to the electrical conductivity of the liquid metal it contains. The magnetic field is thought to arise according to the so-called geodynamo model: the molten core’s movement gives rise to electric currents that in turn produce the magnetism of Earth.