Hluav taws xob, raws li lub ntsiab lus tseem ceeb ntawm lub cev, tsis muaj dab tsi tab sis qhov tshwj xeeb ntawm cov khoom siv ib puag ncig uas tshwm sim nyob ib puag ncig lub cev thiab cuam tshuam rau lub koom haum ntawm kev sib cuam tshuam ntawm lub cev ntawm qee qhov ceev ceev thiab hauv qhov chaw nruj nruj.
Nws tau ntev tau ua pov thawj tias qhov hluav taws xob tuaj yeem tshwm sim ob qho tib si hauv kev txav tsis tau thiab hauv lub cev. Lub cim tseem ceeb ntawm qhov muaj cov teeb meem no yog nws cov txiaj ntsig ntawm cov nqi hluav taws xob.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm thaj chaw hluav taws xob yog lub tswv yim ntawm "lub zog teb". Nyob rau hauv tus lej, lo lus no txhais tau hais tias qhov piv ntawm lub zog uas ua rau qhov ntsuas tus nqi, ncaj qha mus rau qhov ntau thiab tsawg ntawm qhov nqi no.
E=F / q ex.
Qhov tseeb tias tus nqi raug sim txhais tau hais tias nws tsis koom nrog kev tsim daim teb no, thiab nws cov nqi tsawg heev uas nws tsis ua rau muaj kev cuam tshuam ntawm cov ntaub ntawv qub. Lub zog teb yog ntsuas nyob rau hauv V / m, uas yog conditionally sib npaug rau N / C.
Nkauj HmoobTus kws tshawb fawb M. Faraday tau qhia txog cov qauv duab sawv cev ntawm cov hluav taws xob hauv kev tshawb fawb. Nyob rau hauv nws lub tswv yim, qhov tshwj xeeb ntawm qhov teeb meem no nyob rau hauv daim duab yuav tsum tau piav nyob rau hauv daim ntawv ntawm cov kab nrib pleb. Tom qab ntawd lawv tau pib hu ua "kab ntawm hluav taws xob hluav taws xob lub zog", thiab lawv cov kev taw qhia, raws li cov cai hauv lub cev, ua ke nrog cov kev taw qhia ntawm kev nruj.
Cov kab teb yog qhov tsim nyog los qhia cov yam ntxwv zoo ntawm kev nro raws li qhov ceev lossis qhov ntom. Hauv qhov no, qhov ceev ntawm cov kab nro yog nyob ntawm lawv tus lej hauv ib cheeb tsam. Daim duab tsim ntawm kab kab tso cai rau koj los txiav txim seb qhov ntau npaum li cas ntawm thaj chaw muaj zog hauv nws cov ntu ib leeg, nrog rau nrhiav seb nws hloov pauv li cas.
Lub teb hluav taws xob ntawm dielectrics muaj cov khoom xav paub ntau. Raws li koj paub, dielectrics yog cov khoom siv uas tsis muaj cov khoom siv dawb, yog li ntawd, lawv tsis tuaj yeem ua hluav taws xob tam sim no. Cov tshuaj no suav nrog, ua ntej ntawm tag nrho cov, tag nrho cov gases, ceramics, porcelain, distilled dej, mica, thiab lwm yam.
txhawm rau txiav txim siab lub zog hauv lub zog hauv dielectric, lub teb hluav taws xob yuav tsum dhau los ntawm nws. Raws li nws qhov kev nqis tes ua, cov nqi khi hauv dielectric pib hloov pauv, tab sis lawv tsis tuaj yeem tawm ntawm qhov txwv ntawm lawv cov molecules. Cov kev taw qhia ntawm qhov kev hloov pauv txhais tau hais tias cov khoom muaj txiaj ntsig zoo tau hloov pauv raws li cov kev taw qhia ntawm cov hluav taws xob hluav taws xob, thiab cov khoom tsis zoo raug tshem tawm tawm tsam. ATRaws li qhov tshwm sim ntawm cov manipulations, ib tug tshiab hluav taws xob teb tshwm sim nyob rau hauv lub dielectric, cov kev taw qhia ntawm uas yog ncaj qha mus rau sab nraud. Qhov chaw sab hauv no ua rau cov neeg sab nraud tsis muaj zog, yog li ntawd, qhov kev siv ntawm qhov kawg txo qis.
Teb lub zog yog nws cov yam ntxwv tseem ceeb tshaj plaws, uas yog ncaj qha proportional rau lub zog uas qhov tshwj xeeb ntawm cov teeb meem no ua rau tus nqi hluav taws xob sab nraud. Txawm tias qhov tseeb tias nws tsis tuaj yeem pom tus nqi no, siv cov duab kos ntawm cov kab nrib pleb, koj tuaj yeem tau txais ib lub tswv yim ntawm nws qhov ceev thiab kev taw qhia hauv qhov chaw.
