Electronvolt is equal to . It is a common unit of energy within physics, widely used in solid state, atomic, nuclear, and particle physics. It is commonly used with the metric prefixes milli-, kilo-, mega-, giga-, tera-, peta- or exa- (meV, keV, MeV, GeV, TeV, PeV and EeV respectively). In some older documents, and in the name Bevatron, the symbol BeV is used, which stands for billion (10) electronvolts; it is equivalent to the GeV. An electronvolt is the amount of energy gained (or lost) by the charge of a single electron moving across an electric potential difference of one volt.
Angolalla Tera Angolalla Tera Angolalla Tera is one of the woredas in the Amhara Region of Ethiopia. It is named in part after one of the capitals of the former principality of Shewa, Angolalla. Located at the eastern edge of the Ethiopian highlands in the Semien Shewa Zone, Angolalla Tera is bordered on the south by Hagere Mariamna Kesem, on the west by the Oromia Region, on the north by Basona Werana, and on the southeast by Asagirt. The administrative center of this woreda is Chacha. Angolalla Tera was part of former Angolalla Terana Asagirt woreda. Based on the 2007 national census