Electrical machines

Abstract

There is a fact, or if you wish, a law, governing all-natural phenomena that are known to date. There is no known exception to this law. The law is called «the law of conservation of energy»: Energy does not disappear anywhere and does not appear without a source in the closed system. Energy only transfers from one form to another. It is very important: the system must be closet. A closed system is a system in which there are no additional sources of energy and energy does not go anywhere. All energy transformations take place within the system. This is the general law for all the Universe.