electrode: Quick Facts

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Last updated

Oct. 18, 2026

Photos

Diagram of an electrode configuration inside a metal tube, showing a blue circular rod at -20 volts and a red L-shaped bracket at +20 volts, with the tube itself at zero volts.

A grid of numbers on a gray background represents electrostatic potentials in volts. Central rows show red numbers at 20 volts and blue numbers at negative 20 volts, with other values decreasing outward and zeros along the edges.

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