Video: Dab tsi ntawm science yog magnetism?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Magnetism yog ib chav kawm ntawm lub cev phenomena uas yog kho los ntawm magnetic teb. Cov hluav taws xob tam sim no thiab lub sij hawm sib nqus ntawm cov khoom hauv theem pib ua rau muaj qhov sib nqus, uas ua rau lwm yam tam sim no thiab lub sijhawm sib nqus. Magnetism yog ib yam ntawm cov phenomenon ua ke electromagnetism.
Hais txog qhov no, hom kev tshawb fawb dab tsi yog magnetism?
Magnetism yog ib feem ntawm kev sib xyaw electromagnetic quab yuam. Nws yog hais txog lub cev tshwm sim los ntawm lub zog los ntawm cov hlau nplaum, cov khoom uas tsim cov teb uas nyiam los yog tawm tsam lwm yam khoom.
Tsis tas li ntawd, dab tsi ua rau hlau nplaum? Magnetism yog ua rau los ntawm kev txav ntawm cov nqi hluav taws xob. Txhua yam khoom yog tsim los ntawm cov khoom me me hu ua atoms. Yog vim li cas cov ntaub ntawv xws li ntaub los yog ntawv thiaj li hais tias tsis muaj zog hlau nplaum. Nyob rau hauv cov khoom xws li hlau, cobalt, thiab npib tsib xee, feem ntau ntawm cov electrons spin nyob rau hauv tib txoj kev.
Ib yam li ntawd ib tug yuav nug, dab tsi yog magnetism hauv kev tshawb fawb?
Hauv physics, hlau nplaum yog ib lub zog uas tuaj yeem nyiam (rub los ze zog) lossis rub tawm (them tawm) cov khoom uas muaj cov khoom sib nqus xws li hlau hauv lawv (cov khoom sib nqus). Hauv cov lus yooj yooj yim, nws yog cov cuab yeej ntawm qee yam khoom uas rub los ze dua lossis tawm tsam lwm yam khoom.
Dab tsi yog magnetic teb ua los ntawm?
Cov hlau nplaum tas mus li yog cov khoom uas tsim lawv tus kheej tsis tu ncua magnetic teb . Lawv yog ua los ntawm ferromagnetic cov ntaub ntawv, xws li hlau thiab npib tsib xee, uas tau magnetized, thiab lawv muaj ob sab qaum teb thiab sab qab teb ncej.
Pom zoo:
Dab tsi yog qhov txawv ntawm kev siv science thiab natural science?
Natural sciences cuam tshuam nrog lub ntiaj teb lub cev thiab suav nrog astronomy, biology, chemistry, geology, thiab physics. Applied science yog cov txheej txheem ntawm kev siv cov kev paub txog kev tshawb fawb rau cov teeb meem, thiab siv rau hauv kev lag luam xws li engineering, kev saib xyuas kev noj qab haus huv, kev siv technology, thiab kev kawm thaum yau
Dab tsi yog cov hlau nplaum uas ua los ntawm qhov kev npaj ntawm electrons yog dab tsi?
Electrons yog teem rau hauv plhaub thiab orbitals nyob rau hauv ib tug atom. Yog hais tias lawv sau lub orbitals kom muaj ntau spin taw tes rau hauv qab (los yog vice versa), txhua atom yuav ua zoo li ib tug me me hlau nplaum. Thaum ib daim ntawm cov hlau tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) raug rau sab nraud magnetic teb, ob yam tshwm sim
Kev sib raug zoo ntawm science thiab social science yog dab tsi?
Kev tshawb fawb (tseem hu ua ntshiab, ntuj, lossis kev tshawb fawb lub cev) thiab kev tshawb fawb txog kev sib raug zoo yog ob hom kev tshawb fawb uas cuam tshuam nrog tib cov qauv kev tshawb fawb thiab cov khoom ntawm lawv tus kheej txoj cai lij choj. Kev tshawb fawb muaj kev txhawj xeeb ntau dua nrog kev kawm xwm, thaum kev tshawb fawb txog tib neeg kev coj cwj pwm thiab kev sib raug zoo
Lub ntsiab lus ntawm magnetism hauv physics yog dab tsi?
Magnetism yog ib feem ntawm kev sib xyaw electromagnetic quab yuam. Nws yog hais txog lub cev tshwm sim los ntawm lub zog los ntawm cov hlau nplaum, cov khoom uas tsim cov teb uas nyiam los yog tawm tsam lwm yam khoom. Cov hlau nplaum ruaj khov, ua los ntawm cov ntaub ntawv xws li hlau, muaj kev cuam tshuam zoo tshaj plaws, hu ua ferromagnetism
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua