Hauv nqe lus kawg, peb tau tham txog kev sib raug zoo ntawm Resistance R, inductance L, thiab capacitance C, ntawm no peb yuav tham txog qee cov ntaub ntawv ntxiv txog lawv.
Raws li yog vim li cas inductors thiab capacitors tsim inductive thiab capacitive reactances nyob rau hauv AC circuits, lub ntsiab lus nyob rau hauv cov kev hloov nyob rau hauv voltage thiab tam sim no, ua rau muaj kev hloov nyob rau hauv lub zog.
Rau ib qho inductor, thaum tam sim no hloov pauv, nws cov magnetic teb kuj hloov (lub zog hloov).Peb txhua tus paub tias nyob rau hauv electromagnetic induction, lub induced magnetic teb yeej ib txwm cuam tshuam qhov kev hloov ntawm thawj magnetic teb, yog li raws li qhov zaus nce, qhov cuam tshuam ntawm qhov kev cuam tshuam no yuav pom tseeb dua, uas yog qhov nce ntawm inductance.
Thaum qhov voltage ntawm lub capacitor hloov, tus nqi ntawm cov electrode phaj kuj hloov raws li.Pom tseeb, qhov nrawm dua qhov hloov pauv, qhov nrawm dua thiab ntau dua qhov kev txav ntawm tus nqi ntawm cov phaj electrode.Qhov kev txav ntawm tus nqi ntawm tus nqi yog qhov tam sim no.Yooj yim muab, qhov hloov pauv sai dua, qhov ntau dua tam sim no ntws los ntawm lub capacitor.Qhov no txhais tau hais tias lub capacitor nws tus kheej muaj qhov cuam tshuam me me ntawm qhov tam sim no, uas txhais tau hais tias lub capacitive reactance yuav txo qis.
Hauv kev xaus, qhov inductance ntawm inductor yog ncaj qha proportional rau zaus, thaum lub capacitance ntawm lub capacitor yog inversely proportional rau zaus.
Dab tsi yog qhov sib txawv ntawm lub zog thiab qhov tsis kam ntawm inductors thiab capacitors?
Cov resistors siv lub zog nyob rau hauv ob qho tib si DC thiab AC circuits, thiab cov kev hloov hauv voltage thiab tam sim no yeej ib txwm synchronized.Piv txwv li, daim duab hauv qab no qhia txog qhov voltage, tam sim no, thiab lub zog nkhaus ntawm cov resistors hauv AC circuits.Los ntawm daim duab, nws tuaj yeem pom tias lub zog ntawm cov resistor ib txwm muaj ntau dua lossis sib npaug ntawm xoom, thiab yuav tsis tsawg dua xoom, uas txhais tau hais tias tus resistor tau nqus hluav taws xob.
Nyob rau hauv AC circuits, lub hwj chim noj los ntawm resistors yog hu ua nruab nrab lub hwj chim los yog active zog, denoted los ntawm lub capital tsab ntawv P. lub thiaj li hu ua active hwj chim tsuas yog sawv cev rau lub zog noj yam ntxwv ntawm cov khoom.Yog hais tias ib yam khoom muaj zog noj, ces lub zog noj yog sawv cev los ntawm lub active zog P los qhia qhov magnitude (los yog ceev) ntawm nws lub zog noj.
Thiab capacitors thiab inductors tsis haus lub zog, lawv tsuas yog khaws cia thiab tso tawm lub zog.Ntawm lawv, inductors nqus hluav taws xob lub zog nyob rau hauv daim ntawv ntawm excitation magnetic teb, uas nqus thiab hloov hluav taws xob lub zog rau hauv magnetic teb zog, thiab ces tso tawm magnetic teb zog mus rau hauv hluav taws xob zog, tsis tu ncua rov qab;Ib yam li ntawd, capacitors nqus hluav taws xob thiab hloov mus rau hauv hluav taws xob hluav taws xob, thaum tso hluav taws xob hluav taws xob thiab hloov mus rau hauv hluav taws xob hluav taws xob.
Inductance thiab capacitance, cov txheej txheem ntawm absorbing thiab tso tawm hluav taws xob lub zog, tsis txhob haus lub zog thiab kom meej meej tsis tau sawv cev los ntawm active zog.Raws li qhov no, physicists tau txhais lub npe tshiab, uas yog reactive zog, sawv cev los ntawm cov tsiaj ntawv Q thiab Q.
Post lub sij hawm: Nov-21-2023