Kodi liwu loti amperage '

Popanda kumvetsetsa zomwe ndi mphamvu panopa kuphunzira kugwirizana ndi magetsi gawo la sayansi ndi zosatheka. Lingaliro panopa ndi chifukwa chimene, ngati nyumba pa maziko olimba, mzere madera kuwerengetsera motalikira ndi zambiri latsopano tanthauzo. Amperage Bwaloli ndi limodzi mwa makhalidwe a mayiko SI, chotero chilengedwe chingwe unit ampere (A).

Tanthauzo thupi la wagawo ndi Mwachitsanzo motere: panopa mu umodzi ampere zoyenda kumachitika pamene particles ndi mlandu pa ochititsa iwiri m'litali wopandamalire, amene opezeka pa mita imodzi. Pamene izi zimachitika pa wina mita Tambasula ochititsa mogwirizana mphamvu ndi numerically wofanana 2 10 -7 digiri Newton. Nthawi zambiri anawonjezera kuti ochititsa imakonzedwa mu zingalowe ndi (kulola n'chongoletsa mphamvu ya sing'anga kanthu), ndi gawo mtanda awo akamasintha ziro (ichi madutsidwe pazipita).

Komabe, monga kawirikawiri choncho, tanthauzo tingachipeze powerenga za zomveka yekha kwa akatswiri, amene Ndipotu, saperekanso zofunika kwambiri. Koma sankadziwa munthu magetsi "kofunafuna" kwambiri. Choncho, tiyeni tione zimene pano, kwenikweni "pa zala". Tikuimira batire wamba, kumene mitengo babu kuwala kupita mawaya awiri lotsekedwa. Chophukacho wa waya wina chikugwirizana lophimba. Monga tikudziwa njira pulayimale sayansi, ndi magetsi inawadutsa - gulu la particles wokhala awo mlandu magetsi. Kawirikawiri, iwo ankatenga ma elekitironi (zoona, ndi elekitironi umodzi ali ndi mlandu zoipa), ngakhale kuti kwenikweni pang'ono zovuta. particles izi yodziwika ndi chuma ndi conductive (zitsulo), pamene mpweya ndi anasamutsidwa zina woyang'anira ayoni (timakumbukira mawu "ionization" ndi "Kutha kwa kusiyana mpweya"); conduction mu semiconductors, osati amagetsi komanso una (a mlandu zabwino); mu njira electrolytic mwangwiro amaayoni madutsidwe (mwachitsanzo, mabatire galimoto). Koma tiyeni tibwerere ku chitsanzo chathu. Iwo amapanga kuyenda panopa ndi ma elekitironi ufulu. Mpaka lophimba ndi anatembenukira, dera ndi lotsegula, particles kusuntha kulikonse Choncho, panopa ndi ziro. Koma m'pofunika 'kusonkhanitsa chiwembu "monga ma elekitironi kuthamangira ku zoipa mzati zabwino batire chimadutsa babu ndi kuzipangitsa kuti kuwala. Mphamvu, kukakamiza iwo asamuke, linachokera ku munda magetsi kwaiye batire (EMF - munda - panopa).

Current mwamphamvu - chiŵerengero cha mtengo pa nthawi. Kuti zoona tikulankhula za kuchuluka kwa magetsi kudutsa wochititsa kuti ochiritsira unit wa nthawi. Mungamuyandikile ndi kufanizira ndi madzi: kwambiri kutsegula wapampopi, madzi zambiri adzadutsa payipi ya. Koma ngati madzi amayezedwa malita (kiyubiki mamita), ndi apano - kuchuluka kwa chonyamulira kapena, komanso amperes woona. Ndicho mophweka. N'kosavuta kuzindikira kuti kuonjezera mphamvu ya ziliri pa njira ziwiri: mwa kuchotsa babu kwa dera la (kukana otsutsana gululi), komanso kukula m'munda magetsi kwaiye batire la.

Kwenikweni, Tafika kuti, mu nkhani zambiri, mawerengedwe a mphamvu panopa. Pali zambiri mitunduyi: mwachitsanzo, kwa dera wathunthu, kuganizira zochita za makhalidwe magetsi; chifukwa AC ndi DC mafunde; . Pakuti kachitidwe Mipikisano gawo, etc. Koma onse nawo ulamuliro umodzi - lamulo wotchuka Ohm a. Choncho, ife tikumupereka iye kazembe (konsekonse) form:

Ine = U / R,

kumene ine - ziliri pa amperes; U - ndi voteji pa magetsi osatha, mu volts; R - kukana dera kapena gawo mu ohms. kudalira uno wokha, chikutsimikizira tatchulazi: kuwonjezera panopa chingapezeke mu njira ziwiri, kupyolera kukana (nyale zathu) ndi voteji (mphamvu chizindikiro).