The voltage is the difference between the motion in point a and b. The current, or amps, is the speed of the motion through the wire. The shape of the circuit determines the speed at which the motion will travel from point a to b. Electricity is no different than two cans with a string between them. Just a different frequency of motion.
A biography, or simply bio, is a detailed description of a person's life. It involves more than just the basic facts like education, work, relationships, and death; it portrays a person's experience of these life events. Unlike a profile or curriculum vitae, a biography presents a subject's life story, highlighting various aspects of his or her life, including intimate details of experience, and may include an analysis of the subject's personality. Biographical works are usually non-fiction, but
biography A biography is an account of somebody's life written by somebody else, complete with details of the most important parts. These days, anyone, of any age, can be the subject of a biography: Justin Bieber, at the tender age of 17, had one written about his life. A biography is not to be confused with an autobiography, an account of someone's life written by the subject himself. You'll find biographies in printed form (remember books?), but also increasingly in the form of e-books, TV dramatizations, and cinematic bio-docs.