KumiswaIsayensi

Isisekelo ubunjiniyela yesimanje kagesi - lo mkhuba lokungeniswa kagesi

Lo mkhuba lokungeniswa kagesi kuleli Ihluzo Elingafaki Ukuqoka kuyinto isizinda. Kuye empirically wathola emuva ngo-1831 yi-physics IsiZulu UMichael Faraday. Nakuba kwakwaziwa ukuthi amabhungane phakathi umqhubi kanye uzibuthe etholakala eduze ukuxhumana kwenzeka. Kukholakala ukuthi icala esinqunyiwe uxhumana nge inkambu kagesi, futhi ukunyakaza kwabo (lamanje) kubonakala ngokusebenzisa amandla kazibuthe. Nokho, ithemba ukusetshenziswa esiwusizo sokuba nezinto eziqondile lolwati Imiphumela Faraday sika zokuhlola babe ezingacacile kakhulu. Eqinisweni, owaqamba wathola lo mkhuba lokungeniswa kagesi, kwasho ukuqala izinto eziyisisekelo ubunjiniyela yesimanje kagesi.

Experience uqobo kwaba lilula: isigaxa uzibuthe unomphela ziqale ukunyakaza, bese uqokelwe esikhaleni emaphakathi phakathi ematfuba kwekhoyili. ikhoyili Iziphetho zazixhunywe idivayisi inzwa for ukulinganisa amanani elincane wamanje kanye voltage.

Kuye waphawula ukuthi uma ezihambayo uzibuthe galvanometer inaliti kuphambuka zero iphuzu. Futhi ukuphambuka owayemkhulu kukazibuthe idluliswa okukhulu kunakuqala. Uma sikhumbula ukuthi unakho imigqa emibili Induku amandla emkhakheni, kuba ubuhlobo okusobala phakathi ecucuza kazibuthe kanye zamanje eyenga wadala.

Njengoba wamanje akakwazi angesabi kuphakama yesifunda, ube esefika esiphethweni esinengqondo of ukubonakala amandla electromotive senziwa (EMF), okuyinto yena, ikuvumela ukuthola wamanje. umthetho Faraday sika lokungeniswa kusivumela ukuba sisho ukuthi umthelela siyinikeze umqhubi kazibuthe ezingafani isikhathi imbangela ekushintsheni emkhakheni kagesi, uma avaliwe wesifunda yamanje.

Lo mkhuba lokungeniswa kagesi wamvumela ukuba enze isiphetho wamavukelambuso ezibangela emkhakheni kagesi kungase kungabi kuphela amacala kodwa futhi obuhlukahlukene kazibuthe. Kamuva yaphinde zavela nje okungaqondile. Ngakho, umthetho Faraday sika of lokungeniswa kagesi, uthi: kudala magnetic field EMF kuyinto encike ngqo kwi izinga loshintsho ekucucuzeni kazibuthe. Amandla lwamanje eyenziwe iluphu avaliwe ibalwa ngokomthetho Ohm sika.

Lo mkhuba lokungeniswa kagesi sici hhayi kuphela umqhubi kodwa futhi nokuthungatha izidumbu omkhulu conductive. Ngakho, ushintsha kazibuthe uveza umqhubi ukujiya (steel plate nokunye.) Eddy imisinga. Tibangela Ukushisa okungafunwa, ngakho izindlela ezahlukene ukuze kuqedwe nabo (e transformers ipuleti laminations ensimbi kagesi). Qaphela ukuthi amanye amadivayisi, imisinga eddy zisetshenziswa (disc ezimali zokubala).

Kungakabiphi, 1833, i-physics E. Lentz kwaholela umthetho, ngesisekelo okuyinto, EMF eyenga kuveza lwamanje siqondiso iwukudambisa imbangela ukubukeka kwakhe. Ngokwesibonelo: ekushintsheni kazibuthe eheha samanje umqhubi. It yakhelwe ukuze ensimini yayo kazibuthe (okuyinto ekhona emhlabeni babashayeli zamanje aphethe) iyaphebezeka Imbangela.

Lo mkhuba lokungeniswa kagesi sivunyelwa ukuba siqhubeke ubunjiniyela kagesi esimeni sayo samanje. Kunzima ukwethula uhlu olugcwele imishini lisebenzisa. Ngokwesibonelo, umsebenzi ugesi e izitshalo amandla esekelwe lesi simanga. Nokho, umklamo isizukulwane umthamo zabhekana noshintsho olukhulu kusukela Faraday Nokho, isimiso esejwayelekile akukatjhuguluki: imizila amandla magnetic field nge imvamisa high sawela Windings conductive, kuphumele i force electromotive futhi, uma wazi avaliwe kagesi. Ngaphezu kwalokho ugesi kanye izinjini, lokungeniswa mkhuba isetshenziswa, isib, e transformers.

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