Priority Mail Flat Rate is a 1 to 3 day shipping service provided by the U.S. Postal Service (USPS) that features one flat rate for delivery of a package or envelope to its destination. The service allows a maximum weight of 70 lbs. or less for each envelope or package.
Ampere definition. Ampere or amp (symbol: A) is the unit of electrical current. The Ampere unit is named after Andre-Marie Ampere, from France. One Ampere is defined as the current that flows with electric charge of one Coulomb per second. 1 A = 1 C/s.
Amps, watts, volts and ohms are units of measurement in a similar way that the metre is a unit for distance. The ampere (often shortened to amp) is the unit of electric current. The symbol for amps is A. Current is a measurement of how much charge is moving through a particular point in a unit of time. One amp is the current generated when 6.242 x 1018 electrons pass a particular point per second. Thatâs 6,242 followed by 15 zeros â a lot of electrons!