Keep in mind that any voltage, by definition, is a difference in electric potential energy between two points. So while we may say that a voltage source has a voltage of 1.5V, we are actually saying that the voltage between the negative and positive polarities of the voltage source is 1.5V.
Jacksonville, Texas. As of the census[1] of 2000, there were 13,868 people, 4,882 households, and 3,358 families residing in the city. The population density was 981.0 people per square mile (378.7/km2). There were 5,397 housing units at an average density of 381.8 per square mile (147.4/km2).
Tallahassee is the largest city of Florida with population of 842,583 at the density of 697 inhabitants per km2 on the area of 259 km2, Jacksonville is the largest city located in Duval County where 842,583 inhabitants lives, and the city covered an area of 1,935 km2 with density of 424 inhabitants per km2.