YElectromagnetism vs Magnetism
Electromagnetism thiab magnetism plays lub luag haujlwm tseem ceeb hauv peb lub neej txhua hnub. Phenomena xws li electron – nucleus bond, interatomic bond, intermolecular bond, hluav taws xob tsim, hnub ci thiab yuav luag txhua yam nyob rau hauv lub neej niaj hnub, tsuas yog lub ntiajteb txawj nqus yog raws li electromagnetic txoj kev xav.
Magnetism
Magnetism tshwm sim vim muaj hluav taws xob tam sim no. Ib tug ncaj tam sim no nqa conductor exerts ib tug quab yuam ib txwm mus rau lub tam sim no ntawm lwm tam sim no nqa conductor muab tso rau parallel rau thawj tus neeg xyuas pib. Txij li thaum lub zog no yog perpendicular rau qhov ntws ntawm cov nqi, qhov no tsis tuaj yeem yog lub zog hluav taws xob. Qhov no tom qab tau txheeb xyuas tias yog hlau nplaum. Txawm tias cov hlau nplaum tas mus li peb pom yog raws li lub voj tam sim no tsim los ntawm cov kiv cua ntawm electron.
Lub zog sib nqus tuaj yeem yog qhov txaus nyiam lossis xav tsis thoob, tab sis qhov no ib txwm muaj kev sib nrig. Ib qho chaw sib nqus siv lub zog ntawm txhua qhov kev txav mus los, tab sis cov nqi nyob ruaj khov tsis cuam tshuam. Ib qho chaw sib nqus ntawm cov nqi txav mus ib txwm yog perpendicular rau qhov nrawm. Lub zog ntawm tus nqi txav los ntawm qhov chaw sib nqus yog proportional rau qhov nrawm ntawm tus nqi thiab cov kev taw qhia ntawm lub magnetic teb. Ib tug hlau nplaum muaj ob tug ncej. Lawv txhais tau tias yog North Pole thiab South Pole. Nyob rau hauv lub siab ntawm magnetic teb kab, North Ncej yog qhov chaw uas ib tug magnetic teb kab pib thiab South Ncej yog qhov chaw uas nws xaus. Txawm li cas los xij, cov kab hauv teb no yog hypothetical. Nws yuav tsum raug sau tseg tias cov hlau nplaum tsis muaj nyob ua ib qho monopole. Cov ncej tsis tuaj yeem raug cais tawm. Qhov no yog hu ua Gauss txoj cai rau hlau nplaum.
Electromagnetism
Electromagnetism yog ib qho ntawm plaub lub zog hauv qhov xwm txheej. Lwm qhov peb yog lub zog tsis muaj zog, lub zog muaj zog thiab lub ntiajteb txawj nqus. Electromagnetism yog qhov sib txawv ntawm cov hluav taws xob thiab cov chaw sib nqus. Cov nqi hluav taws xob muaj ob daim ntawv; zoo thiab tsis zoo. Hauv kev nkag siab ntawm cov kab hluav taws xob, cov kab pib ntawm cov nqi zoo thiab xaus ntawm cov nqi tsis zoo. Txoj kev xav ntawm electromagnetics qhia tias kev hloov pauv hauv hluav taws xob tsim cov hlau nplaum thiab lwm yam. Lub magnetic teb tsim los ntawm kev hloov hluav taws xob teb yog ib txwm perpendicular rau hluav taws xob teb thiab yog proportional rau qhov hloov ntawm hluav taws xob teb thiab vice versa. James Clark Maxwell yog tus pioneer hauv postulating electromagnetic txoj kev xav. Txoj kev xav hluav taws xob thiab kev sib nqus sib nqus tau tsim los ntawm lwm cov kws tshawb fawb thiab Maxwell koom ua ke. Ib qho ntawm qhov ua tau zoo tshaj plaws ntawm Maxwell yog qhov kev twv ua ntej ntawm kev ceev ntawm electromagnetic tsis thiab yog li lub teeb. Electromagnetism plays lub luag haujlwm tseem ceeb hauv yuav luag txhua yam hauv lub neej niaj hnub.
Qhov txawv ntawm Electromagnetism thiab Magnetism yog dab tsi?
• Electromagnetism, raws li lub npe qhia, muaj hluav taws xob thiab hlau nplaum.
• Magnetism tuaj yeem suav tias yog qhov tshwm sim ntawm electromagnetism.
• Magnetism tsuas yog tham txog cov hlau nplaum. Electromagnetism tham txog ob lub sijhawm sib txawv ntawm cov hlau nplaum thiab lub sijhawm sib txawv ntawm cov hluav taws xob.
• Electromagnetism yog ib qho tseem ceeb ntawm lub zog thaum hlau nplaum ib leeg tsis yog.
• hluav taws xob monopoles tuaj yeem tshwm sim thaum sib nqus monopoles tsis ua.
• Ib qho chaw sib nqus ib txwm xav tau hluav taws xob tam sim no thaum hluav taws xob tam sim no ib txwm ua kom muaj qhov sib nqus.
