Body
Hi Kone,
The permeability is a material constant and is what determines how good a magnetic conductor the core is. Even vacuum has this property and thus acts like a physical object (an aether). When an iron core is saturated the magnetic conductance is that of air or vacuum which is a great drop compared to the conductivity of unsaturated iron.
Physicists don't recognize the vacuum having physical properties. This is probably because of Albert Einstein or because of having to rewrite or correct their books of physics. Engineers do recognize such properties and use them all the time. Forrest Bishop has written a paper about this 'The Forbidden Equation: i = qc:' https://wiki.naturalphilosophy.org/index.php?title=The_Forbidden_Equation:_i_%3D_qc https://wiki.naturalphilosophy.org/index.php?title=The_Forbidden_Equation:_i_%3D_qc
The equation says 'current (i) equals charge (q) multiplied by the speed of light (c).' The speed of light is the signal speed of vacuum. Other materials have other signal speeds less than that of vacuum.
Regards
Ole
---In [email protected], <konehead@...> wrote :
Hi Ole
How would "permeability" of coil change? I understand the core permability but not so much the coil'spermeability...
Maybe related to where in time it is not or near saturated or discharged? I dont.lnow...maybe resistance or inductance change.of coil during or after or before pulsing?
Maybe core effect to coil is all to consider mostly...?
How about aircores changing permeability?
Seems like brief short circuit of coil will change.permeability preyty.qiick and heavy? Maybe this more of change of inductance don't know
Kone