Outlined below is a zip code list for Portland. Select a zip code you are interested in to find zip code data on demographics, family, housing, education, transportation, and real estate. See the Portland Zip Code Map.
For other uses, see Volt (disambiguation). The volt (symbol: V) is the derived unit for electric potential, electric potential difference (voltage), and electromotive force.
Hard to describe, easier to just show: (1) and (2) are standard capacitor circuit symbols. (3) is an example of capacitors symbols in action in a voltage regulator circuit. The symbol with the curved line (#2 in the photo above) indicates that the capacitor is polarized, meaning itâs probably an electrolytic capacitor.