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<blockquote data-quote="ngsm13" data-source="post: 3510380" data-attributes="member: 544830">This is your core question at heart, so I&#039;m addressing this alone.The resistance of the physical coil itself does not change... take a recone for example... the coil itself sitting in an outside/open environment. It stays the same, say except when you apply extreme heat or cold. (Think a physics lab not sure if you ever had college physics).When the coil is introduced into the magnetic gap of the motor, it begins to be affected by its environment. Since the coil is in a magnetic gap, it will change. IMPEDANCE but not resistance.When AC voltage is introduced into the system (by an amplifier), it becomes and electromagnet and that is where impedance changes with frequency etc.It&#039;s not the end all explanation, maybe Neil will show up an post something //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif...Hope it helps.nG</blockquote>

[QUOTE="ngsm13, post: 3510380, member: 544830"] This is your core question at heart, so I'm addressing this alone. The resistance of the physical coil itself does not change... take a recone for example... the coil itself sitting in an outside/open environment. It stays the same, say except when you apply extreme heat or cold. (Think a physics lab not sure if you ever had college physics). When the coil is introduced into the magnetic gap of the motor, it begins to be affected by its environment. Since the coil is in a magnetic gap, it will change. IMPEDANCE but not resistance. When AC voltage is introduced into the system (by an amplifier), it becomes and electromagnet and that is where impedance changes with frequency etc. It's not the end all explanation, maybe Neil will show up an post something [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG]... Hope it helps. nG [/QUOTE]

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