Video: Dab tsi yog qhov sib npaug ntawm kev tswj hwm rau lub capacitor?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov sib npaug capacitor hais tias kuv = C dv/dt. Kev hloov pauv ntse txhais tau tias dv / dt yuav yog tus nqi loj heev rau lub sijhawm luv luv. Yog tias hluav taws xob kev hloov pauv yog instantaneous qhov sib npaug kwv yees lub mem tes ntawm infinite tam sim no nyob rau hauv xoom lub sij hawm.
Ib yam li ntawd, tib neeg nug, dab tsi yog tus qauv ntawm tam sim no ntawm lub capacitor?
Cov qauv uas xam cov capacitor tam sim no yog kuv = Cdv/dt, qhov twg kuv yog tus tam sim no ntws hla lub capacitor , C yog capacitance ntawm capacitor , thiab dv / dt yog qhov derivative ntawm qhov hluav taws xob thoob plaws capacitor.
Kuj Paub, lub capacitor ua haujlwm li cas? A capacitor yog ua los ntawm ob daim hlau. Nrog cov khoom siv dielectric nyob nruab nrab ntawm daim hlau. Thaum koj siv qhov hluav taws xob dhau ntawm ob daim hlau, ib qho hluav taws xob tau tsim. Thiab qhov no yog qhov uas cov physicists txhais tau tias thaum lawv hais tias "a capacitor ua haujlwm los ntawm kev khaws cia lub zog electrostatically hauv qhov hluav taws xob."
Tib neeg kuj nug, dab tsi yog qhov kev sib raug zoo ntawm tam sim no thiab voltage hauv lub capacitor?
Muab qhov no kev sib raug zoo ntawm voltage thiab tam sim no hauv a capacitor nyob rau hauv cov nqe lus calculus, lub tam sim no ntawm a capacitor yog lub derivative ntawm lub hluav taws xob hla ntawm capacitor nrog rau lub sijhawm. Los yog, hais hauv cov ntsiab lus yooj yim, a capacitor tam sim no yog ncaj qha proportional rau sai npaum li cas hluav taws xob hla nws hloov.
SI unit ntawm capacitance yog dab tsi?
Cov SI unit of capacitance yog tus farad (cim: F), muaj npe tom qab Askiv physicist Michael Faraday. A 1 kev capacitor , thaum them nrog 1 coulomb ntawm hluav taws xob, muaj qhov sib txawv ntawm 1 volt ntawm nws daim hlau. Qhov sib txawv ntawm capacitance hu ua elastance.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
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Qhov sib npaug sib npaug rau qhov nruab nrab ntawm h2so4 los ntawm Koh yog dab tsi?
Hauv daim vis dis aus no peb yuav sib npaug ntawm qhov sib npaug KOH + H2SO4 = K2SO4 + H2O thiab muab cov coefficients raug rau txhua qhov sib xyaw. Txhawm rau sib npaug KOH + H2SO4 = K2SO4 + H2O koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no