(N/A) Maxwell logically demonstrated that a changing electric field induces a magnetic field. This phenomenon is of fundamental importance in physics.
Historically, the connection between electricity and magnetism was first observed by Oersted, who showed that a current-carrying wire produces a magnetic field.
This phenomenon is crucial for explaining the existence and propagation of electromagnetic waves, including radio waves, gamma rays, and visible light.
Specifically, the production of a magnetic field by a changing electric field is mathematically described by the displacement current term added to Ampere's circuital law, which is essential for understanding the charging of a capacitor.