Ukungeniswa Kwamagnetic - izinkinga nezixazululo
1. Izici ezilandelayo zithonya ukungeniswa kukazibuthe kuntambo yomqhubi.
(1) ugesi ogeleza entanjeni
(2) imvume
(4) ibanga lephuzu kusuka kucingo
Yiziphi izitatimende ezilungile
Isixazululo:
Isibalo sokungeniswa kwamagnetic kwentambo:
μ o = Ukuvunyelwa kwe-vacuum noma i-magnetic constant
I = Amandla kagesi ageleza ocingweni
r = ibanga lephuzu kusuka ku -wire
B = ubukhulu bokungeniswa kwamagnetic
2. Qaphela izitatimende ezihlobene nokungeniswa kwamagnetic okulandelayo.
(1) ugesi ogeleza entanjeni
(2) ukuvuleka kwe-vacuum
(3) indawo yezingxenye zezintambo
(4) ukuminyana kwentambo
Yini ethinta ubukhulu bokungeniswa kwamagnetic kumqhubi wentambo.
Isixazululo
Funda ifomula yokungeniswa kwamagnetic kanye nencazelo yangaphambilini.
3. Ugesi I ugeleza entanjeni yomqhubi. Kuyini ukungeniswa kwamagnetic enkabeni yendilinga (P)? (µ o = 4π.10 -7 Wb.m -1 .A -1 )
Kwaziwa:
Irediyasi yesiyingi (r) = 6 cm = 6 x 10-2 amamitha
Amandla kagesi (I) = 8 Ampere
Ukungeneka kwe -vacuum (µo ) = 4π x 10 -7 Wb.A -1 m -1
Okufunwayo: ukungeniswa kwamagnetic maphakathi nendilinga (P)
Isixazululo:
360 o – 90 o = 270 o . 270 o / 360 o = 3/4 bese kuba ngu-270 o = 3/4 umjikelezo
Ifomula yensimu yamagnetic enkabeni yekhoyili enezihibe eziningana:
B = insimu yamagnetic, N = inani lama-windings, I = ugesi wamanje, r = irediyasi yokugoba
Enkingeni engenhla, kukhona ukugoqa okukodwa kuphela ukuze u-N asuswe ku-equation. Ikhoyili yentambo enkingeni engenhla akuyona indilinga eyodwa kodwa indilinga engu-3/4. Ifomula engenhla ilungiswa futhi ngale nkinga:
Ukufakwa kwamagnetic maphakathi nendilinga:
4. Ugesi ongu-2 A ugeleza entanjeni eyindilinga efana nesithombe. Ubukhulu kanye nesiqondiso sokungeniswa kwamagnetic endaweni P uma irediyasi yendilinga ingu-4π cm.
Kwaziwa:
Irediyasi (r) = 4π cm = 4π x 10-2 amamitha
Amandla kagesi (I) = 2 Ampere
Ukungeneka kwe -vacuum (µo ) = 4π x 10 -7 Wb.A -1 m -1
Okufunwayo: Ubukhulu kanye nesiqondiso sokungeniswa kwamagnetic endaweni P
Isixazululo:
Ikhoyili yentambo enkingeni engenhla iyindilinga eyi-1/2.
Ubukhulu bokungeniswa kwamagnetic endaweni P:
Imibuzo nezimpendulo ezingu-20 eziphathelene nokufakwa kwamagnetic:
1. Umbuzo: Kuyini ukungeniswa kwamagnetic?
Impendulo: Ukufakwa kwe-magnetic, noma i-magnetic flux density, kuyindlela yokulinganisa ukuhlushwa kwemigqa yensimu yamagnetic endaweni ethile. Imelelwa uphawu B futhi inamayunithi e-Tesla (T).
2. Umbuzo: Ukungeniswa kukazibuthe kuhlobene kanjani nensimu kazibuthe?
Impendulo: Ukungeniswa kwamagnetic ukumelwa kwenani lensimu yamagnetic, okubonisa amandla ayo kanye nesiqondiso kunoma iyiphi indawo ethile emkhathini.
3. Umbuzo: Uyini umthetho kaFaraday wokungeniswa kwe-electromagnetic?
Impendulo: Umthetho kaFaraday uthi amandla e-electromotive (EMF) abangelwa kunoma yisiphi isifunda esivaliwe alingana nesilinganiso esibi sokushintsha kwe-magnetic flux ngesifunda.
4. Umbuzo: Ukuqondiswa kwekhoyili kukuthinta kanjani ukungeniswa kukazibuthe okubonwa yiyo?
Impendulo: Ukufakwa kwamandla kazibuthe okwenziwa yikhoyili kuphezulu kakhulu lapho indilinga yekhoyili iqonde ngqo ensimini yamagnetic futhi incane kakhulu lapho indilinga ihambisana.
5. Umbuzo: Iyiphi indima edlalwa yi-magnetic induction kuma-transformer?
Impendulo: Kuma-transformer, ukushintshana kwe-magnetic induction ku-coil eyinhloko kubangela i-EMF ku-coil yesibili, okuvumela ukudluliselwa kwamandla kagesi phakathi kwama-coil.
6. Umbuzo: Ukunyakaza komqhubi ensimini yamagnetic kuholela kanjani ekuqalisweni kwe-electromagnetic?
Impendulo: Uma umqhubi ehamba ensimini yamagnetic, inani lemigqa yamagnetic field edlula kuyo liyashintsha, okuholela ku-EMF ebangelwayo ngokomthetho kaFaraday.
7. Umbuzo: Iyini iyunithi yokungeniswa kwamagnetic?
Impendulo: Iyunithi yokungeniswa kwamagnetic yi-Tesla (T), elingana ne-Weber ngemitha yesikwele (Wb/m²).
8. Umbuzo: Umthetho kaLenz uhlobene kanjani nokufakwa kwamagnetic?
Impendulo: Umthetho kaLenz uchaza indlela i-EMF ebangelwa ngayo kanye nomsinga ovela ekufakweni kwe-electromagnetic. Uphikisana noshintsho ekugelezeni kwamagnetic okwakhiqiza lokho.
9. Umbuzo: Kungani insimbi ivame ukusetshenziswa njengesisekelo kuma-coil okungenisa?
Impendulo: Insimbi i-ferromagnetic futhi ingafakwa kalula kumagnethi. Uma isetshenziswa njenge-core, ithuthukisa ukungeniswa kumagnetic futhi igxilise imigqa yensimu yamagnetic, yandisa ukusebenza kahle kwekhoyili.
10. Umbuzo: Ubukhulu be-EMF ebangelwayo buthinteka kanjani yizinga lokushintsha kwe-magnetic flux?
Impendulo: Ubukhulu be-EMF ebangelwayo buhambisana ngqo nesilinganiso sokushintsha kwe-magnetic flux.
11. Umbuzo: Kuyini ukungeniswa okuhlangene?
Impendulo: Ukungeniswa kwe-mutual kubhekisela enkambisweni lapho ushintsho kumandla kagesi wekhoyili eyodwa lubangela i-EMF kukhoyili eseduze ngenxa yensimu yamagnetic eshintshayo.
12. Umbuzo: Kungakhuliswa kanjani ukusebenza kahle kokungeniswa kwe-electromagnetic ohlelweni?
Impendulo: Ukusebenza kahle kungandiswa ngokusebenzisa izinto ezinokuvuleka okuphezulu kwamagnetic, ukunciphisa ukulahlekelwa okunamandla okumelana, kanye nokwenza ngcono ukwakheka kwekhoyili kanye nokuma kwayo uma kuqhathaniswa nensimu yamagnetic.
13. Umbuzo: Kuyini ukuzithuthukisa?
Impendulo: Ukuzikhukhumeza kwenzeka lapho ukushintsha kwamandla kagesi kukhoyili kubangela i-EMF kukhoyili efanayo ngenxa yensimu yayo yamagnetic eshintshayo.
14. Umbuzo: Inani lokujika kukhoyili likuthinta kanjani ukwenziwa kwe-magnetic?
Impendulo: Ukwandisa inani lokujika kukhoyili kwandisa i-EMF ebangelwayo, uma kubhekwa izinga eliqhubekayo lokushintsha kwe-magnetic flux.
15. Umbuzo: Iyiphi indima edlalwa yi-magnetic induction kuma-generator kagesi?
Impendulo: Kumajeneretha kagesi, ukunyakaza komshini (ngokuvamile okujikelezayo) kubangela ushintsho ekugelezeni kwamagnetic kuma-coil, okuholela ekuqalisweni kwe-electromagnetic kanye nokukhiqizwa kwe-alternating current (AC).
16. Umbuzo: Ingabe ukungeniswa kwe-magnetic kungenzeka ngama-static magnet kanye nama-stationary conductors?
Impendulo: Cha, ukuze kwenzeke ukungeniswa kwamagnetic, kudingeka kube nokunyakaza okuhlobene phakathi kwamagnethi nomqhubi, noma insimu yamagnetic ngokwayo kumele ishintshe.
17. Umbuzo: Ukungeniswa kwe-magnetic kuhlobene kanjani nokuvuleka kwe-magnetic?
Impendulo: Ukuvuleka kwamagnetic kulinganisa ikhono lezinto ezibonakalayo lokusekela ukwakheka kwensimu yamagnetic. Izinto ezine-magnetic permeability ephezulu zingagxila imigqa yamagnetic field, okuholela ekuqalisweni okukhulu kwamagnetic.
18. Umbuzo: Kwenzekani ku-EMF ebangelwayo lapho umqhubi ehamba ngokushesha ensimini yamagnetic?
Impendulo: I-EMF ebangelwayo iyanda ngesivinini somqhubi ohamba ensimini yamagnetic, uma kunikezwa amandla ensimu yamagnetic ahlala njalo.
19. Umbuzo: Ingabe amakhoyili amabili anezindawo ezahlukene eziwela izigaba angaba nokufakwa okufanayo kwamagnetic?
Impendulo: Yebo, i-magnetic induction (B) ayincikile endaweni ye-coil enqamulayo kodwa incike emandleni e-magnetic field kanye nokuma kwe-coil maqondana nensimu.
20. Umbuzo: Isenzakalo sokungeniswa kwe-electromagnetic sisisekela kanjani isimiso sokonga amandla?
Impendulo: Ukufakwa kwe-electromagnetic kuguqula amandla omshini (ukunyakaza) abe amandla kagesi (futhi okuphambene nalokho). Ngenkathi uhlobo lwamandla lushintsha, amandla aphelele ahlala elondolozwe.
Ukuqonda ukungeniswa kwamandla kazibuthe kanye nezimiso zawo kwenza kube nentuthuko kwezobuchwepheshe obuhlukahlukene, kusukela ekukhiqizweni kwamandla kagesi kuya kumadivayisi kagesi.
