Umthetho ka-Ohm: yonke into ekufuneka uyazi

Umthetho ka-Ohm, ibhalbhu yesibane

Ukuba uqala kwihlabathi lombane kunye nezinto ze-elektroniki, ngokuqinisekileyo uvile kaliwaka elidumileyo Umthetho ka-Ohm. Kwaye ayisiyonto incinci, kuba ingumthetho osisiseko kule ndawo. Ayintsonkothanga kwaphela, kwaye ihlala ifundwa kwasekuqaleni ngenxa yokuba ibaluleke kangakanani, ngaphandle kwalonto, kusekho abaqalayo abangayaziyo.

Kwesi sikhokelo uza kuthi funda yonke into oyifunayo malunga nalo Mthetho we-Ohm, ukusuka kule nto uyiyo, ukuya kwiifomula ezahlukeneyo ekufuneka uzifundile, ukuba zingasetyenziswa njani Ukusetyenziswa okusebenzayonjl. Kwaye ukwenza izinto zibe lula ngakumbi ndiza kwenza uthelekiso olunomdla ngakumbi phakathi kwenkqubo yombane kunye namanzi okanye inkqubo ye-hydraulic ...

Thelekisa nenkqubo ngesanti kubunzulu baphantsi

ukuthelekiswa kwamanzi vs umbane

Phambi kokuqala ndingathanda ukuba ube nombono ocacileyo wendlela esebenza ngayo inkqubo yombane. Ingabonakala inzima kwaye ingabonakali ngakumbi kunezinye iinkqubo, njenge-hydraulic enye apho ulwelo luhamba khona kwiityhubhu ezahlukeneyo. Kodwa kuthekani ukuba wenze u umthambo wokucinga kwaye ucinge ukuba ii-elektroni zombane ngamanzi? Mhlawumbi inokukunceda uqonde ngokukhawuleza nangokisiseko ngendlela izinto ezisebenza ngayo ngokwenene.

Ngale nto ndiza kwenza uthelekiso phakathi Inkqubo enye yombane kunye nenye ye-hydraulic. Ukuba uqala ukuyibona ngolu hlobo ngale ndlela iya kuba yinto enomdla ngakumbi:

  • Ukuqhuba: cinga ukuba yityhubhu yamanzi okanye ithumbu.
  • Ukhuseleko: Unokucinga ngento emisa ukuhamba kwamanzi.
  • Umbane: ayisiyonto ngaphandle kokuhamba kwee-elektroni ezihamba ngekondakta, ke unokuyicinga njengokuhamba kwamanzi okuhamba ngombhobho.
  • I-Voltage: Ukuhamba kwamandla ombane kwisekethe kufuneka kubekho umahluko onokubakho phakathi kwamanqaku amabini, ngokungathi ufuna umahluko kwinqanaba phakathi kwamanqaku amabini phakathi kwawo ofuna ukuba amanzi ageleze. Oko kukuthi, unokuthelekelela ombane njengoxinzelelo lwamanzi akwityhubhu.
  • UkuchasaNjengoko igama layo lisitsho, kukuchasana nokuhamba kombane, oko kukuthi, into echasayo. Khawufane ucinge ukuba ubeka umnwe kwisiphelo sombhobho wokunkcenkceshela egadini yakho ... oko kuyakwenza ukuba kube nzima ukuphuma kwejet kwaye kwandise uxinzelelo lwamanzi (ombane).
  • Ubunzulu: amandla okanye okwangoku ohamba ngombane wombane unokufana nenani lamanzi ahamba ngetyhubhu. Umzekelo, khawufane ucinge ukuba ityhubhu enye yi-1 ″ (amandla asezantsi) kwaye enye ityhubhu ngu-2 ″ (ukuphakama okuphezulu) igcwele ulwelo.

Oku kunokukhokelela ekubeni ucinge ukuba unokuthelekisa izinto zombane ngemibhobho yamanzi:

  • Iseli, ibhetri, okanye umbane: ingangumthombo wamanzi.
  • I-Condenser: inokuqondwa njengechibi lamanzi.
  • Isiguquli, ukudlulisa, ukutshintsha ...-Ezi zixhobo zolawulo zinokuqondwa njengempompo ongayivula uyicime.
  • Ukuchasa-Yinokuba kukuchasana obeka kuko xa ucinezela umnwe wakho ekupheleni kwethumbu lamanzi, abanye abalawuli begadi / imilomo, njl.

Ewe unokubonisa kwinto esele ithethiwe kweli candelo ukuyifumana ezinye izigqibo. Umzekelo:

  • Ukuba uyalonyusa icandelo lombhobho (ubukhulu) uxhathiso luya kuncipha (jonga umthetho ka-Ohm -> I = V / R).
  • Ukuba uyonyusa ukuxhathisa kumbhobho (ukumelana), amanzi aphuma noxinzelelo oluphezulu kwinqanaba elifanayo lokuhamba (jonga umthetho we-Ohm -> V = IR).
  • Kwaye ukuba unyusa ukuhamba kwamanzi (ngamandla) okanye uxinzelelo (ombane) kwaye walatha ijet kuwe, iya kwenza umonakalo ongaphezulu (ukothuka kombane okuyingozi ngakumbi).

Ndiyathemba ukuba ngale mizekeliso uqonde into ebhetele ...

Yintoni umthetho ka-Ohm?

Iifomula zoMthetho ka-Ohm

La Umthetho ka-Ohm Bubudlelwane obusisiseko phakathi kobukhulu obuthathu obusisiseko bokuqina okwangoku, uxinzelelo okanye amandla ombane, kunye nokumelana. Into esisiseko yokuqonda imigaqo-nkqubo yokusebenza kweesekethe.

Ibizwa ngegama lokufumanisa kwayo, ifiziksi yaseJamani UGeorge Ohm. Wayekwazi ukubona ukuba kubushushu obungaguquguqukiyo, umbane ohamba ngokuxhathisa okungagungqiyo kulungelelaniswe ngokuthe ngqo kumandla ombane asetyenzisiweyo kuyo nangokwahlukileyo kokuchasene nokuchasana. Oko kukuthi, mna = V / R.

Obu bukhulu buthathu ifomula zinokusonjululwa ukubala umbane ngokubhekisele kubunzulu kunye namaxabiso oxhathiso, okanye uxhathiso njengomsebenzi wevolthi enikiweyo kunye nokuqina. Ngokufanelekileyo:

  • Ndi = V / R
  • V = IR
  • R = V / Mna

Ukuba ndim ngamandla okwangoku kwisekethe echazwe kwi-amperes, V ombane okanye ombane obonakaliswe ngee-volts, kunye no-R ukumelana okuchazwe kwii-ohms.

por ejemploKhawufane ucinge ukuba unesibane esidla i-3A kwaye sisebenza kwi-20v. Ukubala ukuxhathisa onokufaka isicelo:

  • R = V / Mna
  • R = 20/3
  • R6.6 Ω

Ilula kakhulu, akunjalo?

Izicelo zoMthetho ka-Ohm

Las Izicelo zoMthetho ka-Ohm Azinamkhawulo, ziyakwazi ukuzisebenzisa kubuninzi bezibalo kunye neengxaki zokubala ukufumana ezinye zeempawu ezintathu ezinxulumene neesekethe. Nokuba iisekethe zinzima kakhulu, zinokwenziwa lula ukuze usebenzise lo mthetho ...

Kuya kufuneka uyazi ukuba zikhona iimeko ezimbini ezizodwa ngaphakathi komthetho ka-Ohm xa uthetha ngesekethe, kwaye ezi zezi:

  • Intambo emfutshane: kule meko kuxa iindlela ezimbini okanye izinto zesekethe zinxibelelana, njengaxa kukho into enxibelelana nabaqhubi ababini. Oko kukhokelela kwisiphumo esiguqukayo apho ikhoyo ngoku ilingana nevolthi kwaye iphela ivutha okanye yonakalise izinto.
  • Isekethe evulekileyo: kuxa kuphazanyiswa isekethe, nokuba ngabom usebenzisa iswitshi, okanye kungenxa yokuba umqhubi othile esikiwe. Kule meko, ukuba isekethe yajongwa ngokwembono yoMthetho ka-Ohm, inokuqinisekiswa ukuba kukho ukunganyangeki okungapheliyo, ngenxa yoko ayinakho ukuqhuba ngoku. Kule meko, ayonakalisi kumalungu esekethe, kodwa ayizukusebenza ngalo lonke ixesha lesekethe evulekileyo.

Potencia

amandla

Nangona umthetho osisiseko we-Ohm ungabandakanyi ubukhulu be amandla ombane, inokusetyenziswa njengesiseko sokubala kwayo kwiisekethi zombane. Kwaye amandla ombane axhomekeke kumandla ombane kunye nokuqina (P = I · V), into leyo umthetho ka-Ohm ngokwawo unokunceda ukubala ...


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  1. Uxanduva lwedatha: UMiguel Ángel Gatón
  2. Injongo yedatha: Ulawulo lwe-SPAM, ulawulo lwezimvo.
  3. Umthetho: Imvume yakho
  4. Unxibelelwano lwedatha: Idatha ayizukuhanjiswa kubantu besithathu ngaphandle koxanduva lomthetho.
  5. Ukugcinwa kweenkcukacha
  6. Amalungelo: Ngalo naliphi na ixesha unganciphisa, uphinde uphinde ucime ulwazi lwakho.