An Electromagnetic Field is Free
An electromagnetic field does not come from the power source Most people who are electrically inclined believe that an electromagnetic field surrounding a current carrying wire is the same energy that has originated from the power source. It is true that the electromagnetic field surrounding that wire is in proportion to the current. But what isn't so revealing is that the electromagnetic field surrounding this wire really doesn't have anything to do with the original power source. Then what is the electromagnetic field? Let's say we start out with 100% of the energy and we call that energy let's say 1 joule of energy. If that 1 joule of energy flows through a load then that load has performed 1 joule's worth of work. Ok so far, so good. All 100% of that 1 joule of energy is going back to the source in order to destroy it. Now I didn't say that the energy is being destroyed since we can't create nor destroy energy, but we can only transform it. ...