Originally posted by Steven Induced noise is noise that is inducted into your sugna wires by a nearby changing magnetic field. ie - the field around the power wire leading to your amplifiers. puting the wires parallel to each other doesn't really give you a high flux density plus the field isn't changing that much. When it is changing more the signal is SO LOUD you couldn't even hear the little noise it makes
ANY changing magnetic field can induce an electric current into a wire, hence why generators and alternators work. They either spin a field around a coil of wire, or spin a coil of wire inside a field.
yes they do induce current into a wire BUT this can't be compared to 2 paralleled strait wires. The reason why is in those designs the wires are coil the give very high flux densities and the spun at very very high speed to pass the high densiy fields through the wire
Now you run your power and signal wires next to eachother. The magnertic feild surroundig the power wire changes EVERY time the amplifier needs a different amount of current, whether the demand has increased or decreased. This changing magnetic feild interacts with your signal wire and induces an electric flow through the wire.
The signal wire isn't coupled well enoungh to have an effect at low current
The amplifier picks up this electric flow and amplifies it. The amplifier now needs more current, to amplify this induced signal, which causes the amplifiers current requirements to change. More, or less, current flows in the power wire. The magnetic field around the power wire changes, inducing more, or less, electric flow in the signal wire. See a pattern.
no --------- the signal wire isn't passing though enough flux density for this to happen at low current
Induced noise can be caused by running power and signal wires next to each other.
nope-------
Just for a test, if you want, take a signal wire and wrap it around your alternator. Now start the car and measure the voltage fro one end of the signal wire to the other. Chances are you'll find that there is a current being induced into the wire. Probably greater than 6 volts. Now tell me that your power wire cannot induce a noise into a signal wire!
---------ummm this test has nothing to do with runing your power and signal together
I know the laws of physics, electricity, magnetic fields, and EM radiation
you do----------//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif k----- then why are you arguing this? and how come you seem to think 100A tough 10gauge wire equals a voltage drop of .01V