Simba reElectromotive Rinokonzereswa (EMF)
Simba remagetsi rinotungamirwa (EMF) chiitiko chinosanganisira kugadzirwa kwemagetsi kana simba remagetsi mumagetsi nekuda kwesimba remagetsi rinoshanduka rinopfuura nepakati paro. Pfungwa iyi yakatanga kuunzwa naMichael Faraday muna 1831 kuburikidza nekuyedza kwakatevedzana kuratidza kuti simba remagetsi rinoshanduka rinogona kugadzira magetsi mumagetsi. Kuwanikwa uku kwakakonzera shanduko mufizikisi neinjiniya, kunyanya mukugadzirwa kwemajenareta emagetsi, matransformer, nezvimwe zvishandiso zvakasiyana-siyana zvemagetsi.
Nheyo huru dze empf induced
Kuti tinzwisise musimboti wekutanga weEMF induced, tinofanira kutaura nezvemutemo waFaraday we electromagnetic induction. Mutemo uyu unoti "Simba remagetsi rinokonzerwa mudunhu rinoenderana nekuchinja kwesimba remagetsi kuburikidza nedunhu." Nemamwe mashoko, kana paine shanduko mumunda wemagineti unopfuura nemumubati, unoburitsa voltage yemagetsi mumubati.
Fomura yemasvomhu yemutemo waFaraday inogona kunyorwa seinotevera:
\[ \mathcal{E} = – \frac{d\Phi_B}{dt} \]
Dimana:
– \(\mathcal{E}\) ndiyo EMF (Volts) inokonzerwa
– \(\Phi_B\) ndiyo magnetic flux (Weber)
– \(\frac{d\Phi_B}{dt}\) ndiyo mwero wekuchinja kwesimba remagineti
Chiratidzo chekuramba chiri mufomura chinomiririra mutemo waLenz, unoti divi reEMF inokonzerwa richapesana nekuchinja kwesimba remagineti rakakonzera. Iyi ndiyo nheyo yekuchengetedza simba inotaurwa mumamiriro ezvinhu emagetsi.
Zvinhu Zvinokanganisa EMF Inokurudzirwa
1. Kumhanya kweKuchinja kweMagineti
Chimwe chezvinhu zvikuru zvinokanganisa hukuru hweEMF inokonzerwa nemagetsi inhanho yekuchinja kwesimba remagineti. Simba remagineti parinochinja nekukurumidza, EMF inokonzerwa nemagetsi inowedzera. Izvi zvinoreva kuti mudziyo unoshanda pafrequency yakakwira yesimba remagineti uchaburitsa EMF yakakura kupfuura mudziyo unoshanda pafrequency inononoka.
2. Nhamba yekutenderera kwewaya
Huwandu hwekutenderera kwewaya mucoil hunokanganisawo zvakanyanya EMF inotungamirwa. Kana ukawedzera kaviri huwandu hwekutenderera kwewaya, unenge wawedzera kaviri EMF inotungamirwa, nekuti kutenderera kwega kwega kunowedzera huwandu kune huwandu hwemagetsi anogadzirwa.
3. Nzvimbo yeCoil Cross-Sectional
Nzvimbo ye cross-sectional ye coil inoonekwa ku magnetic field inokanganisawo kukura kwe induced EMF. Kana nzvimbo ye cross-section yakakura, magnetic flux inogona kupfuura nepakati pe coil, uye izvi zvichawedzera induced EMF.
4. Simba reMagineti
Simba remagineti pacharo rinewo simba guru. Simba remagineti rakasimba rinoita kuti pave nekuchinja kukuru mukufamba kwemagineti, uye nokudaro rinoita kuti pave neEMF yakakwira.
Mashandisirwo eInduced EMF muhupenyu hwezuva nezuva
1. Jenareta yemagetsi
Nheyo ye induced emf inoshandiswa zvakanyanya mumajenareta emagetsi. Mukati mejenareta, simba remagineti rinotenderera rakatenderedza coil yewaya, kana coil yewaya inotenderera mukati mesimba remagineti. Kutenderera uku kunokonzera shanduko inogara iripo mukuyerera kwemagineti kuburikidza necoil, nokudaro zvichigadzira induced emf inogona kushandurwa kuita magetsi kune zvinangwa zvakasiyana-siyana.
2. Transformator
Transformer chishandiso chinoshandiswa kuwedzera kana kuderedza voltage mu network yekugovera magetsi. Matransformer anoshanda nepfungwa ye induced emf, apo shanduko yemagetsi mu primary coil inogadzira shanduko yemagnetic field, iyo inokonzera voltage mu secondary coil.
3. Chitofu cheInduction
Muma cooktop e induction, musimboti we induction emf unoshandiswa kupisa mapoto nemapani zvakananga. Magetsi anochinjana anoyerera nepa coil iri pasi pe cooktop, zvichiita kuti simba remagineti rive rinochinja. Simba remagineti iri rinoita kuti magetsi apinde mupoto kana pani yakagadzirwa nezvinhu zve ferromagnetic, zvichigadzira kupisa kwekubika.
4. Mimwe Midziyo yeMagetsi
Induced emf inoshandiswawo mune zvimwe zvishandiso zvemagetsi zvakaita semamaikorofoni anochinja simba, maspika, uye masensa emagineti. Semuenzaniso, maikorofoni inochinja simba kuita masaini emagetsi nekushandura masimba emagineti anokonzera emf mu coil yewaya.
Kuedza Kuri Nyore Kuona EMF Inokurudzirwa
Zvishandiso nezvishandiso
1. Coil yewaya (kutenderera kakawanda)
2. Magineti ebhawa
3. Galvanometer kana voltmeter inonzwisisika
Prosedur
1. Batanidza magumo ewaya coil ne galvanometer kana voltmeter.
2. Uyai nemagneti yebhawa pedyo necoil yewaya uye tarisai shanduko dziri mugalvanometer.
3. Fambisa magineti ebhaa nekukurumidza kuenda uye kure necoil yewaya uye tarisa shanduko dziri mugalvanometer.
Mukuyedza uku, uchaona kuti pese painofambiswa magineti ebhawa, tsono yegalvanometer inoratidza voltage inokonzereswa. Izvi zvinoratidza kuti simba remagineti rinoshanduka rakatenderedza coil yewaya rinoburitsa EMF inokonzereswa.
Mhedziso
Induced emf chiitiko chakakosha mufizikisi uye electromagnetism chakagadzira nzira yekuvandudzwa kwakasiyana-siyana kwetekinoroji. Nheyo huru ye induced emf ndeyekuti simba remagineti rinoshanduka rinogona kugadzira voltage yemagetsi mu conductor. Zvinhu zvakaita sehuwandu hwekuchinja kwesimba remagineti, huwandu hwema turns ewaya, nzvimbo ye cross-sectional ye coil, uye simba resimba remagineti zvese zvinopesvedzera hukuru hwe induced emf.
Mashandisirwo anoshanda eEMF inokonzereswa anogona kuwanikwa mumajenareta emagetsi, matransformer, ma induction cooker, nezvimwe zvishandiso zvemagetsi zvakasiyana-siyana. Kunzwisisa nekushandisa misimboti yeEMF inokonzereswa hakungopfumisi sainzi chete asiwo kunotungamira kufambira mberi kwetekinoroji kunoita kuti hupenyu hwezuva nezuva huve nyore.
Nekunzwisisa misimboti uye mashandisirwo eEMF inokonzerwa, hatingogone kungokoshesa kufambira mberi kwetekinoroji kuripo chete asiwo kubatsira mukuvandudzwa kwezvimwe zvinhu zvitsva mune ramangwana.
