Qhov sib txawv tseem ceeb ntawm electrostatics thiab magnetostatics yog tias electrostatics yog kev kawm ntawm cov nqi hluav taws xob thaum so, whereas magnetostatics yog kev kawm ntawm cov hlau nplaum hauv cov tshuab uas cov dej ntws tsis tu ncua.
Electrostatics thiab magnetostatics yog ob ceg ntawm electromagnetism. Magnetostatics yog sib nqus analogue ntawm electrostatics.
Electrostatics yog dab tsi?
Electrostatics yog ib ceg ntawm electromagnetism uas kawm txog cov nqi hluav taws xob thaum so. Raws li classical physics, qee cov ntaub ntawv xws li amber tuaj yeem nyiam cov khoom hnyav tom qab txhuam nws saum npoo. Lub npe Greek ntawm amber, "electron", tau coj mus rau lub npe "hluav taws xob". Cov phenomena ntawm electrostatics tshwm sim los ntawm lub zog uas hluav taws xob tsub nqi rau ib leeg. Cov rog no tuaj yeem piav qhia siv Coulomb txoj cai. Feem ntau, electrostatically induced rog tsis muaj zog, tab sis qee lub zog hluav taws xob xws li lub zog ntawm ib qho hluav taws xob thiab cov proton yog li 36 qhov kev txiav txim ntawm qhov muaj zog dua li lub zog gravitational ua ntawm cov subatomic particles.
Daim duab 01: Electrostatic Nature ntawm Cat's Fur vim rubbing
Peb tuaj yeem tau txais ntau yam piv txwv rau cov xwm txheej electrostatic, suav nrog cov kev nyiam yooj yim ntawm lub hnab yas thiab ib txhais tes lossis lub tshuab luam ntawv thiab laser luam ntawv. Lub sij hawm electrostatics suav nrog kev tsim cov nqi ntawm cov khoom vim kev sib cuag ntawm qhov chaw. Feem ntau, tus nqi pauv tshwm sim thaum twg ob qhov chaw sib cuag thiab sib cais, tab sis qhov cuam tshuam ntawm cov nqi sib pauv feem ntau tau pom thaum tsawg kawg yog ib qho ntawm qhov chaw muaj kev tiv thaiv hluav taws xob txaus. Qhov no tshwm sim vim hais tias cov nqi hloov ntawm qhov chaw raug kaw nyob rau hauv lub sij hawm ntev uas txaus rau kev soj ntsuam. Tom qab ntawd, cov nqi hluav taws xob no zoo li nyob rau ntawm qhov khoom nto kom txog thaum cov nqi them los ntawm av los yog raug tshem tawm sai sai los ntawm kev tso tawm.
Magnetostatics yog dab tsi?
Magnetostatics yog ib ceg ntawm electromagnetism uas peb tuaj yeem kawm cov magnetic teb ntawm cov tshuab uas cov dej ntws tsis tu ncua. Hauv lwm lo lus, magnetostatics yog siv rau cov tshuab uas muaj cov dej ntws tsis hloov nrog lub sijhawm. Qhov tshwm sim no yog qhov sib nqus sib nqus ntawm electrostatics (qhov twg cov nqi nyob ruaj khov).
Feem ntau, magnetization tsis tas yuav zoo li qub. Peb tuaj yeem siv qhov sib npaug ntawm magnetostatics los kwv yees ceev sib nqus hloov cov xwm txheej uas tshwm sim ntawm lub sijhawm teev ntawm nanoseconds lossis tsawg dua. Ntxiv mus, magnetostatics yog ib qho kev kwv yees zoo thaum cov dej ntws tsis zoo li qub (tsuas yog cov dej ntws tsis hloov pauv sai). Feem ntau, magnetostatics yog siv nyob rau hauv daim ntawv thov ntawm micromagnetics xws li cov qauv ntawm magnetic cia li nyob rau hauv lub computer nco. Tsis tas li ntawd, kev tsom xam magnetostatic tuaj yeem ua tiav los ntawm kev siv cov hlau nplaum tas mus li lossis dhau los ntawm qhov tam sim no los ntawm cov kauj ntawm cov hlau uas nws axis coincides nrog cov nqaj axis.
Qhov txawv ntawm Electrostatics thiab Magnetostatics yog dab tsi?
Electrostatics thiab magnetostatics yog ob ceg ntawm electromagnetism. Magnetostatics yog sib nqus analogue ntawm electrostatics. Qhov sib txawv tseem ceeb ntawm electrostatics thiab magnetostatics yog tias electrostatics yog kev kawm txog cov nqi hluav taws xob thaum so, thaum magnetostatics yog kev kawm ntawm cov hlau nplaum hauv cov tshuab uas cov dej ntws tsis tu ncua. Ntxiv mus, electrostatics yog txuam nrog ob qho tib si conductive thiab non-conductive cov ntaub ntawv, thaum magnetostatics txuam nrog magnetizable cov ntaub ntawv.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm electrostatics thiab magnetostatics.
Summary – Electrostatics vs Magnetostatics
Electrostatics thiab magnetostatics yog ob ceg ntawm electromagnetism. Magnetostatics yog sib nqus analogue ntawm electrostatics. Qhov sib txawv tseem ceeb ntawm electrostatics thiab magnetostatics yog tias electrostatics yog kev kawm ntawm cov nqi hluav taws xob thaum so, qhov magnetostatics yog kev kawm ntawm cov hlau nplaum hauv cov tshuab uas cov dej ntws tsis tu ncua.
