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Put another way, when the magnet was approximate circular loop, increasing the magnetic flux appearing the induced current, the same happened with the removal of the magnet, the flow decreased, but in this case the direction of the current was reversed. The explanation of this behavior of the induced current appeared after the work of Faraday, with Lenz's Law, proposed by Heinrich Friedrich Emil Lenz(1804-1865). According to this result, the direction of the induced current opposes the change in flux that caused . Put another way, if the approach of the magnet, the current direction seems to be such that it tries to prevent this approach. When the magnet is removed, the direction of current attempts to prevent foreclosure. If the chain does not have this behavior, the magnet approaching or would depart indefinitely (not ever stop), infinitely increasing the current. Thus, the current direction expresses the conservation of energy in the system. Otherwise, the approximation leads to an increased current without a power source for such. The "production" of electricity Until the work of Faraday and Joseph Henry(1797-1878), the production of electricity was through batteries (as you read earlier in this text), which would not be feasible to produce energy on a large scale, if the only sources of emf were chemical in nature to produce electricity on a large scale. Fem, what is it? You ever heard of generators of electromotive force? These generators perform work on the loads that pass through it, causing between its terminals appears a potential difference. An example: a generator (do not forget: Battery is a generator, because these are devices that transform any form of energy into electrical energy), 8 V, means that women will perform work of 8 J, "an effort" to carry a single charge of 1 C, a pole (end) to another. For you to understand better, let's make an analogy with a ball rolling on an inclined plane. The hand that will put the ball at the top of the plan, each time she arrives at the base, is the electromotive force. In the magnetic circuit, as is the case of generators with which we are dealing, this electromotive force is induced in the process of change of magnetic flux and also complies with Lenz's Law. The generator used in hydroelectric plants consists of a fixed part, called the stator, which consists of windings where the current is generated. Another part, called the rotor, is mobile and is where the magnetic field is created. The turbine rotor rotates coupled to the energy supply system.
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Drugim riječima, kada je magnet bio približan kružne petlje, povećanje magnetskog toka pojavljuju inducirane struje, isto se dogodilo s uklanjanjem magneta, protok smanjio, ali u ovom slučaju je smjer struje je bilo obrnuto. Objašnjenje ove ponašanju inducirana struja pojavila se nakon rada Faraday, s Lenz zakon, predložio Heinrich Friedrich Emil Lenz(1804-1865). Prema ovom rezultatu, smjer inducirane struje protivi promjenu toka koji je uzrokovao . Drugim riječima, ako se o pristupu magneta, trenutni smjer čini se, kao da pokušava spriječiti takav pristup. Kad magnet je uklonjena, smjer sadašnjih pokušava spriječiti foreclosure. Ako lanac nema taj problem, magnet približava ili bih otišao na neodređeno vrijeme (ne ikada prestati), beskrajno povećanje struje. Dakle, trenutni smjer izražava očuvanje energije u sustavu. Inače, aproksimacija dovodi do povećane potrebe za strujom bez izvora napajanja za takva. "Proizvodnje" električne energije Do djelo Faraday i Joseph Henry(1797-1878), proizvodnja električne energije je kroz baterija (kao što ste pročitali ranije u ovom tekstu), što ne bi bilo izvedivo za proizvodnju energije u velikoj mjeri, ako je jedini izvori EMS su kemijske prirode za proizvodnju električne energije u velikim razmjerima. Fem, što je to? Jeste li ikada čuli za generatore elektromotorna sila? Ovi generatori obavljati posao na opterećenja koji prolaze kroz njega, uzrokujući između svojih kontakata pojavljuje se razlika potencijala. Primjer: generator (ne zaboravite: Baterija je generator, jer to su uređaji koji transformiraju bilo koji oblik energije u električnu energiju), 8 V, znači da su žene će obavljati posao od 8 J, "trud" nositi jednu naknadu od 1 C, pole (kraj) u drugu. Za što bolje razumjeti, idemo napraviti analogiju sa loptu valjanje na nagnutoj ravnini. Ruka koja će staviti loptu na vrhu plana, svaki put kad stigne u bazi, je elektromotorne sile. U magnetskog kruga, kao što je slučaj generatora s kojima smo se bave, to je inducirana elektromotorna sila u procesu promjena toka, a također u skladu s Zakonom o Lenz. Generator se koristi u hidroelektranama se sastoji od fiksnog dijela, pod nazivom statora, koji se sastoji od namota gdje struja generira. Drugi dio, nazvan rotora, je mobitel i gdje magnetsko polje se stvara. Turbina rotor rotira zajedno na sustav opskrbe energijom.