Traditional electromagnetic theory begins with static fields, electric and magnetic. It then moves on to slowly changing fields and ends with the Transverse Electromagnetic Wave (TEM), or light, travelling at the speed of light.
Under the new theory, static fields, electric or magnetic, do not exist. The only field which exists is the electromagnetic field, or TEM Wave, travelling at the speed of light, as in Figures 2 and 3 of 1 . Any supposed static electric or static magnetic field is a composition of two electromagnetic fields travelling through each other, an example being in Figures 7 and 9 . We have a single velocity universe, where nothing, including you, can travel slower than the speed of light. Every part of the energy which composes your body is travelling at the speed of light, perhaps in small circles – see “The Electron” .
My introduction to electromagnetic theory begins with a TEM Wave guided by two conductors, because the way electromagnetic energy travels in a beam in open space is not well understood. We start with this simplest case, and try to build up to the more difficult cases, like a beam of light in space.
Ivor Catt 9 December 2012
Ivor Catt 9 December 2012
Think of a battery connected by two parallel wires to a lamp, and the lamp lights. Traditional theory is colmplex, having the battery delivering electric charge/current to the wires, with a voltage difference between the wires. As a result of the current flow, a field results between the wires which travels at the speed of light from battery to lamp. The field contains energy/power, which is watts. Its amplitude is va, the voltage v multiplied by the current a. Most of the energy flowing from battery to lamp is concentrated near to the wires, as indicated in the field pattern shown after Figure 5 in this article . The same amount of energy/power flows through each curvilinear square. That is the classical theory.
The new theory is much simpler. The battery wants to emit, not electric charge/current, but ExH field. It can only do so if there is a uniform path along which it can travel – described by two parallel conductors. The nature of the field is shown in Figures 4 and 5 of this article . It is a physical requirement that the E lines enter the conductor at right angles, and this determines the field pattern.
In contrast with classical theory, which has electric current/charge in/on the conductors and also field between the conductors, the new theory has only field between the conductors and nothing in/on the conductors. Electricity has gone from the picture.
If the conductors are imperfect, a little of the field enters them. This has been thought to be electric charge and electric current.