Why is a current signal preferred to a voltage signal for long analog transmission? – electronics.stackexchange.com

Why is a current signal preferred to a voltage signal for long analog transmission? – electronics.stackexchange.com

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Some sensors act like current sources, and I have seen it several times, especially for very long wires even at outdoors like wind vanes. 4-20 mA current loops are used instead of 0-10 V ...

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