Electric current electrons into the conduction band. The current-carrying electrons in the conduction band are known as "free electrons", though they are often simply called "electrons" if that is clear in context. Current density is a measure of the density of an electric current. It is defined as a vector whose magnitude is the electric current per cross-sectional area. In SI units, the current density is measured in amperes per square metre. where "formula_6" is current in the conductor, formula_7 is the current density, and formula_8 is the differential cross-sectional area vector. The current density (current per unit area) "formula_7" in materials
University of Campinas School of Electrical and Computer Engineering <br>Av. Albert Einstein, 400 <br>Cidade Universitária "Zeferino Vaz" <br>CEP 13083-970 - Campinas/SP <br>Phone: +55.19.3788-3720 Fax: +55.19.3289-1395 University of Campinas School of Electrical and Computer Engineering The School of Electrical and Computer Engineering (, FEEC) is one of the most well-renowned engineering schools in Brazil. It was created in 1967 on UNICAMP's main campus in Campinas, São Paulo, Brazil, as the Department of Electrical Engineering () of the School of Engineering (). It became an independent unit in 1986, renamed the School of Electrical Engineering (). Subsequently, in 1996, it was changed to its current name, adding computer engineering courses in