The generators are useful machines that do a lot of good things. In this composition, I would like to tell you some information about the generators.Today the generators are made in a wide range of sizes, from very small machines . Generators are for the production of electricity, and produce most of the electricity that is used by people. Electric generators are essentially very large quantities of copper wire spinning around inside very large magnets, at very high speeds.The generator can be small in size, so that it can be held in one hand. These generators are used in some small scientific equipment to generate enough electricity to move the pointer, and may be the size of a generator is greater than the size of a house, and can provide more than a million electrical power houses. For example: when my family and I go to the desert we take a lot of things from the house like: TV, Video , Air conditioner , tent and fire.
The generator does not introduce energy, but it converts mechanical energy into electrical energy, and engineers usually refer to it as a mechanical tool, which manages the basic generator engine. In order to get additional electricity from the generator it is essential to make additional mechanical energy.
http://en.wikipedia.org/wiki/Electrical_generator
The dynamo was the first electrical generator capable of delivering
power for industry. The dynamo uses electronic to
convert mechanical rotation into a pulsing direct
electric current through the use of a commutator. The first dynamo
was built by Hippolyte Pixii in 1832.
Through a series of accidental discoveries, the dynamo became the
converter.
A dynamo machine consists of a stationary structure, which
provides a constant magnetic field, and a set of rotating windings
which turn within that field. On small machines the constant
magnetic field may be provided by one or more permanent magnets;
larger machines have the constant magnetic field provided by one
or more electromagnets, which are usually called field coils.
Large power generation dynamos are now rarely seen due to the
But before the principles of were discovered, very large direct-
current dynamos were the only means of power generation and
distribution. Now power generation dynamos are mostly a curiosity.
This is information about the generator. The device is simple to install but of great interest, and has many important uses ranging from children's games through the household electrical devices.
Bibliography
http://0-www.accessscience.com.library.hct.ac.ae/content.aspx?searchStr=the+generators&id=284800
http://en.wikipedia.org/wiki/Electrical_generator
http://science.howstuffworks.com/electricity2.htm