Glad you found it. I do not have the book, and you need to allow for that when reading my explanations.
You would not generally expect the inductive part of the impedance to change much with temperature, magnetic fields are largely unaffected by heat. (though some magnetic materials lose their magnetism when hot - do not try to solder to a magnet ! )
Resistance is, as it is all about electron collisions and mean free path, and much as it would be harder to cross a crowded room if everyone is dancing and waving their arms and legs about, compared to being the same number of people but standing perfectly still, an electron experiences a harder time getting through the metal when the atoms are all jigging about more (i.e, the metal is hotter....)
In many simpler metallic structures resistance rise almost linearly with absolute temp. This is not true of complex alloys however.
Glad you found it. I do not have the book, and you need to allow for that when reading my explanations.
You would not generally expect the inductive part of the impedance to change much with temperature, magnetic fields are largely unaffected by heat. (though some magnetic materials lose their magnetism when hot - do not try to solder to a magnet ! )
Resistance is, as it is all about electron collisions and mean free path, and much as it would be harder to cross a crowded room if everyone is dancing and waving their arms and legs about, compared to being the same number of people but standing perfectly still, an electron experiences a harder time getting through the metal when the atoms are all jigging about more (i.e, the metal is hotter....)
In many simpler metallic structures resistance rise almost linearly with absolute temp. This is not true of complex alloys however.
