magneettilähdettä
A magneettilähde refers to the origin or source of a magnetic field. This can be understood in several contexts. In physics, a magnetic field is generated by moving electric charges. These charges can be macroscopic, such as an electric current flowing through a wire, or microscopic, such as the intrinsic magnetic moments of electrons within atoms.
In the realm of materials science, permanent magnets are considered magneettilähteet. These materials, like iron or
Geophysics studies the Earth's magnetic field, which is believed to originate from the motion of molten iron