"Karl Magnus" a écrit dans le message de news: vuBNe.37819$ snipped-for-privacy@bignews1.bellsouth.net...
Twisted mean twisted pair or wire like in a cat5 cable each pair of wire is twisted together..
this is not stranded wire..by the way,stranded wire is more flexible then solid wire and that's the only difference.. on a same gauge of wire stranded or not there is no difference in how the current/voltage of the signal in it will react..up to a certain frequency..
but the frequency where the difference start to be a problem is in the high uhf band..
I know about this cause I work a lot with transmission line in my hobby(ham radio)
the way twisted pair works,that helps sending data on long run,is simple...if you run 2 wire side by side for long,there will be capacitive effect that will form.the capacitance will affect the signal sent by distorting it..
Now if you introduce the twisting of the pair will had a coiling effect,in electronics class we learn that capacitance and inductance are inverse and fighting each other...so the twisted pair cable will have a tendency to have a controlled impedance what ever the length,that's in theory but it is working a lot better then straight wire when sending data..
of course you have to be careful about the uses of twisted pair wiring..cause its been known to engineer that build control panel that simple JKT induce capacitance so they build there circuit to compensate it..(adding inductance to it)
you can learn about capacitance here: