Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
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voltage drop

The decline in voltage in an electrical circuit due to the resistance in the conducting line. This is why longer electrical runs in a building require thicker gauge wire and why AC power is transmitted over high-voltage lines. Higher current requires thicker and more expensive wires, but higher voltage does not. The high-voltage lines are reduced by transformers near the end of the line. See voltage and ohm.

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