Topic List

Click a topic to learn more.


Term of the Moment

crypto seed phrase


Look Up Another Term


Definition: 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.