So if I have a 100ft cable which is winded at one place. Compared to that cable actually covering 100ft length, in straight line or zig-zag way?
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DC transmission does not have a force along its travel so the max recommended length is about 300 feet (with Ethernet for example, other applications have other lengths) without a solution to extend the power (ie power of Ethernet can help extend range). 100 feet could be long for a DC signal
AC has what’s known as a power factor, so it can drive itself along longer distances, say miles, like across the highways. There is some additional application to keep “clean” energy – ie 120 V, 60Hz, minimal distortion, but the power drop off for AC is minimal. There will be transformers and other loads to keep it “clean”. 100 feet is not very long for an AC signal.
What’s your application? What signal is it that your trying to get across? If it’s more of a general question then it lends itself to power of an AC wave va DC signal. If it’s application specific then having some details would help.
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