Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points. The voltage between two points is equal to the work done per unit of charge against a static electric field to move a test charge between two points. This is measured in units of volts; moving 1 coulomb of charge across 1 volt of electric potential requires 1 joule of work. Voltage differences between points can be caused by static electric fields, by electric
Jackson is the county seat of Madison County, Tennessee. Located 70 miles east of Memphis, it is a regional center of trade for West Tennessee. Its total population was 65,211 at the 2010 census and 67,265 in the 2012 Census estimate. Jackson is the primary city of the Jackson, Tennessee metropolitan area, which is included in the Jackson-Humboldt, Tennessee Combined Statistical Area. Jackson is Madison County's largest city, and the second-largest city in West Tennessee next to Memphis. It is h
Jackson is a city located along Interstate 94 in the south central area of the U.S. state of Michigan, about 40 miles (64 km) west of Ann Arbor and 35 miles (56 km) south of Lansing. It is the county seat of Jackson County. As of the 2010 census, the city population was 33,534. It is the principal city of the Jackson Metropolitan Statistical Area, which includes Jackson County and has a population of 160,248. It was founded in 1829 and named after President Andrew Jackson.