Maxwell's Equations, Part VII

Maxwell's equations are still indispensable when dealing with everyday phenomena involving electricity and magnetism and light. They help us understand the natural universe better. Maxwell's four equations of electrodynamics are the Ampére-Maxwell law. There are other forms of Maxwell's equations, including integral forms, so-called macroscopic forms, relativistic forms, even forms that assume the existence of magnetic monopoles. Maxwell was concerned about the new source of a magnetic field. He called this new type of current displacement current and tried to integrate it into Ampére's circuital law.