What does the movement of electrons create?

The movement of electrons generates a magnetic field due to the principles of electromagnetism. When electrons move, particularly in a conductor, they create a magnetic field around the conductor. This phenomenon is described by Ampère's circuital law, which states that the magnetic field in space around an electric current is proportional to the electric current that produces it.

In practical terms, this is why electric currents can induce magnetic fields in wires, coils, and other conductive materials, leading to many applications in electrical engineering, such as the functioning of electromagnets, transformers, and electric motors. Understanding that moving charges (electrons) generate magnetic fields is fundamental to grasping the relationship between electricity and magnetism.

While heat, sound, and light can also be produced by electrical phenomena, the specific relationship of electron movement to creating magnetic fields is a foundational concept in physics and engineering.