Different subject Essay Example | Topics and Well Written Essays - 2000 words

Different subject - Essay Example The working of Electricity generators is based on the principle of electromagnetic induction. The principle can be illustrated as induction of flow of electrons by a moving conductor in a field influenced by magnet. This it is a simple principle that leads to major achievements in the spectrum of development and growth of industries. It is the principle that Faraday succeeded to prove that a rotary mechanical motion can induce or generate electricity. Devices that produce electricity with the help of mechanical motion are termed as electric generators. The mechanical motion can be assisted in many ways it can be pressurized water moving water wheel, steam engine, wind turbine, and internal combustion engine etc but the basic principle is same in all the cases. With the evolution of electric generators and electrical field, many areas of human life are optimized in best manner; anything can be powered anytime with utmost customization potential. The reverse process of converting elect rical energy into mechanical energy is achieved through motors that have similar components as in electric generators. Mechanism and Principle of Working All elements are composed of atoms. ... If the same metallic wire is placed around a magnetic field and the magnetic field is subjected to motional variation then some amount of voltage appear across the wire that causes the electric charges to flow through the passage. The faster the field is subjected to change the higher the voltage produced and higher the charges flow. This means a moving magnetic field drives the electrons present in the metallic wire. However there is a requirement that the circuit of the wire remains closed if incase the circuit is open the motion of magnetic field will not affect the charges and charges will remain static. This simply means that a moving magnetic field can induce current in a closed circuit, and this is the basic principle of physics that is discussed earlier as electromagnetic induction. In the case of generators there is not a single wire but there are bunch of wires all connected in series with each other so that the total potential difference induced in a generator is the sum o f all potential differences induced in each single wire and so on. It actually explains that if there are thousand windings this means the magnitude of potential difference of a generator is thousand times than that of a single wire in that varying magnetic field. The above discussed mechanism is of popular and known generators, which are based on electromagnetic induction, however before that there were generators that deliver electric charges but they work on the principle of electrostatic induction, but since the magnitude of such electrostatic generators were minimal and ineffective therefore the usage of such generators are now obsolete. Electrostatic induction is about generating static charge in a conductor by bringing it