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why exactly does impedance change?
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<blockquote data-quote="IgnoreMe" data-source="post: 3509598" data-attributes="member: 551352"><p>just thought of this recently and a google search didnt end up with any real good info.</p><p></p><p>anyways, im wondering, how come resistance changes when the coil is moved inside the motors magnetic field?</p><p></p><p>one would think that being set to read ohms using a dmm and connecting to the speaker terminals, that the impedance should stay the same (yet we all know this isnt the case). i mean, your connected to something physical (the coil in essence), which has a set impedance. so why exactly does moving it change its value?</p><p></p><p>im assuming the magnetic field is what effects it, but how does a magnetic field affect a resistance value of something physical? //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif</p><p></p><p>ps: only info i found was on something called "field impedance" but i got confused by the article //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif</p></blockquote><p></p>
[QUOTE="IgnoreMe, post: 3509598, member: 551352"] just thought of this recently and a google search didnt end up with any real good info. anyways, im wondering, how come resistance changes when the coil is moved inside the motors magnetic field? one would think that being set to read ohms using a dmm and connecting to the speaker terminals, that the impedance should stay the same (yet we all know this isnt the case). i mean, your connected to something physical (the coil in essence), which has a set impedance. so why exactly does moving it change its value? im assuming the magnetic field is what effects it, but how does a magnetic field affect a resistance value of something physical? [IMG]//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif[/IMG] ps: only info i found was on something called "field impedance" but i got confused by the article [IMG]//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif[/IMG] [/QUOTE]
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