Why "back" ?! The answer was in the video . What is true for the field from a current in a wire is also true for permanent magnets which are a current loop or a set of current loops. These are always relative movements of charges related to each other. It is also a consequence of the contraction of lengths. The relative movement means that the electric fields are no longer isotropic and no longer compensate each other between positive and negative charges. As a result, the conductor charges are subjected to the resultant electric field of the permanent magnet charges (and vice versa).
If this is true,then the following should be considered. We know how strong the magnetic field of a neo permanent magnet can be. We also know that in order for us to create a field of equal strength to that of a neo permanent magnet,we would need a good size coil,and a lot of current. We also know that the flow current creates heat. So one has to wonder as to why,with a field so strong,the humble neo permanent magnet creates no heat what so ever We should also note that since the PM needs to have a continual flow of current in order for it to be a PM,that it must be creating it's own energy to do so. This would equate to a self running device And,if we can have a device that self powers it's own magnetic field,then why is a device that self powers it's own electrical energy so hard to believe--such as the TPU. We have been bred and brought up on induction as being the only means to create electrical power,putting aside things like the solar panel,piezo's,peltier module's,and the hydrogen fuel cell . Perhaps there is something we have missed here,due to the indoctrination we have all been swamped with. How exactly dose this self powered field generator(the humble PM)continue to self power it self for 100's of years? .What have we missed here? If we have a simple device that can continually self power it's own magnetic field,then the same should be true for an electric field. Brad
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