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.
Answer Wiki. They measure different things: Amps or amperes measures current, the amount of electricity flowing through some point, and is often denoted in equations by the letter I. Amperes have the dimensions of coulombs per second. Volts or voltage is the amount of potential energy that electrons have relative to another point, usually what's called ground, which is defined as having a potential of 0 volts.