2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv chav tsev kub, ib tug semiconductor muaj txaus cov hluav taws xob dawb rautso cai rau nws ua tam sim no. … Qhov chaw uas nyob tom qab ntawm cov hluav taws xob tso cai rau ib daim ntawv cog lus kom txav los ntawm ib qho hluav taws xob mus rau lwm qhov, yog li tshwm sim los ua ib qho txiaj ntsig zoo txav los ntawm cov iav siv lead ua.
Vim li cas cov khoom siv hluav taws xob ua hluav taws xob ntawm qhov kub siab?
Tsis muaj hluav taws xob nyob ntawd los ua hluav taws xob. … Nyob rau hauv cov ntaub ntawv ntawm semiconductors, raws li kub nce, electrons nyob rau hauv lub valence band tau txais lub zog txaus los txhawb thoob plaws "lub zog sib txawv" mus rau hauv lub conduction band. Thaum qhov no tshwm sim, cov hluav taws xob txhawb nqa no tuaj yeem txav thiab ua hluav taws xob.
Puas semiconductors ua cua sov thiab hluav taws xob?
Cov ntaub ntawv feem ntau poob rau hauv ob pawg: cov khoom siv hluav taws xob thiab cov insulators. Cov ntaub ntawv no coj los yog tsis ua hluav taws xob, feem. … Semiconductors yog cov insulators ntawm qhov kub thiab txias heev, tab sis ntawm qhov kub thiab txias, lub zog thermal ntxiv tso cai rau cov hluav taws xob dhia mus rau hauv cov khoom siv hluav taws xob.
Qhov twg yog cov khoom siv hluav taws xob ntshiab?
Ib qho khoom siv (ntshiab) semiconductor, tseem hu ua undoped semiconductor lossis i-type semiconductor, yog ib qho ntshiab semiconductor yam tsis muaj hom dopant tseem ceeb tam sim no. … Nyob rau hauv cov khoom semiconductors tus naj npawb ntawm cov electrons zoo siab thiab tus naj npawb ntawm qhov sib npaug: n=p.
yog dab tsiCov khoom ntawm semiconductor?
Ntawm qhov xoom tsis zoo, cov khoom siv hluav taws xob yog zoo meej insulators, Qhov ntom ntawm cov hluav taws xob hauv cov khoom siv hluav taws xob hauv chav tsev kub tsis siab li hauv cov hlau, yog li tsis tuaj yeem ua tam sim no zoo li hlau.. Cov hluav taws xob conductivity ntawm semiconductor tsis siab li hlau tab sis kuj tsis zoo li hluav taws xob insulator.
Pom zoo:
Dab tsi yog qhov txawv ntawm lub tshuab hluav taws xob thiab lub tshuab hluav taws xob?
Gramophone: Txhua lub suab kaw suab, lossis cov cuab yeej ua si yav dhau los-cov suab kaw, tshwj xeeb tshaj yog tias nws siv lub tiaj tiaj tiaj. Phonograph: Txhua lub suab kaw suab, lossis cov cuab yeej siv rau kev ua si cov suab uas tau kaw dhau los, tshwj xeeb tshaj yog tias nws siv lub tog raj kheej tig.
Puas yog kev siv hluav taws xob siv hluav taws xob?
Usability engineering yog kev qhuab qhia uas tsom mus rau kev txhim kho kev siv tau ntawm kev sib tham sib. Nws rub tawm cov kev xav los ntawm kev tshawb fawb hauv computer thiab kev puas siab puas ntsws los txhais cov teeb meem uas tshwm sim thaum siv cov kab ke.
Lub tshuab hluav taws xob loj npaum li cas rau qhov chaw nres tsheb tsis muaj hluav taws xob?
Nrhiav lub rhaub nrog BTU tso zis uas phim koj cov txiaj ntsig. Piv txwv li, yog tias koj qhov chaw nres tsheb tsis muaj hluav taws xob yog 484 square feet, koj cov qauv yog 484 / 200 x 9, 000, lossis 21, 780. Koj xav tau lub rhaub nrog tsawg kawg yog 21, 780 BTU tso zis.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
