2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Gaus txoj cai hais tias tag nrho cov hluav taws xob hluav taws xob hluav taws xob yog tias hluav taws xob tsis sib xws, hluav taws xob flux (ΦE) dhau los ntawm qhov chaw ntawm vector cheeb tsam S yog: ΦE=E⋅S=EScosθ, qhov E yog qhov loj ntawm qhov hluav taws xob (muaj units ntawm V/m), S yog thaj tsam ntawm qhov chaw, thiab θ yog lub kaum sab xis ntawm cov kab hluav taws xob thiab qhov qub (perpendicular) rau S. https://www.toppr.com › guides › physics › electric-flux
Electric Flux: Taw qhia, Gauss Law, Formula, Videos, Solved Examples
tawm los ntawm qhov ntim ntawm cov nqi sib npaug ntawm cov nqi kaw lub sijhawm tso cai ntawm qhov nruab nrab hauv qhov chaw. Yog li yog tias ∫ E. ds=0, nws txhais tau hais tias net flux los ntawm qhov chaw yog xoom piv txwv li yog tsis muaj nqi enclosing qhov nto.
Ntawm qhov chaw twg raug txiav txim siab rau Vajtswv txoj cai?
Qhov chaw uas peb xaiv rau daim ntawv thov ntawm Gauss txoj cai yog hu ua Gaussian nto.
Gauss txoj cai hais li cas?
Gauss txoj cai rau hluav taws xob hais tias cov hluav taws xob ntws hla txhua qhov chaw kaw yog sib npaug rau cov nqi hluav taws xob uas kaw los ntawm qhov chaw.
Gauss txoj cai thiab Gaussian nto yog dab tsi?
Raws li Gauss txoj cai, qhov ntws ntawm cov hluav taws xob los ntawm ib qho chaw kaw, tseem hu ua Gaussian nto, yog sib npaug rau cov nqi them uas tau muab faib los ntawm covpermittivity ntawm qhov chaw dawb: Qhov sib npaug no tuav rau tus nqi ntawm ib qho kos npe, vim tias peb txhais thaj tsam vector ntawm qhov chaw kaw kom taw qhia sab nraud.
Txoj cai Gauss puas siv tau rau txhua qhov chaw?
Gauss txoj cai muaj feem xyuam rau txhua qhov chaw kaw nrog qee qhov kev faib tawm. Gaussian nto yog qhov chaw nyob rau hauv peb seem qhov chaw uas cov kab flux ntawm ib vector teb hla.
Pom zoo:
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Thaum twg yog cov noog dub dub uas tau teev tseg tias muaj kev puas tsuaj?
Lub Tricolored Blackbird yog suav nrog 2014 Lub Xeev Ntawm Cov Noog Saib. Twb tau teev tseg tias Kev Tiv Thaiv Kab Mob Los ntawm IUCN-World Conservation Union, cov tsiaj yog tam sim no tus neeg sib tw rau npe nyob rau hauv US Endangered Species Act (ESA), nrog rau California lub xeev ESA.
Thaum twg nyob rau hauv Vajtswv ntxiv rau cov lus cog tseg?
Lub npe nom ntawm Kev Cob Qhia Kev Ntseeg tau raug coj los siv rau xyoo 1945. Qhov kev hloov pauv zaum kawg ntawm hom lus tuaj rau Flag Day 1954, thaum Congress tau tshaj tawm txoj cai lij choj uas ntxiv cov lus "hauv qab Vajtswv” tom qab “ib haiv neeg.
Cov neeg Ixayees puas tau ua rau thaj av uas tau cog lus tseg?
Tom qab taug kev 40 xyoo, cov neeg Yudais tuaj txog hauv tebchaws Ixayees ua ib haiv neeg, raws li Vajtswv tau cog lus rau lawv ntau pua xyoo dhau los. … (Yauhas 4:18) Yog li ntawd thaum kawg cov Yixayee muaj peev xwm paub txog lawv txoj cai rau lawv lub tebchaws uas lawv hlub, Vajtswv tau cog lus rau lawv.
Nyob rau qhov kev xav tau ntawm qhov chaw kho mob uas tsis tau ntsib?
Kev xav tau kev kho mob tsis haum yog txhais raws li cov lus pom zoo ntawm qhov muaj thiab txaus ntawm kev kho mob, tshuaj lossis lwm yam. Kev kho mob yuav tsis muaj nyob rau qee yam kab mob, lossis kev kho mob tab sis tsis muaj txiaj ntsig, lossis kev kho mob muaj tab sis cov txheej txheem xa khoom lossis cov qauv tsim tsis txaus.
