Video: Dab tsi yog qhov tam sim no los ntawm lub capacitor?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhawm rau muab qhov kev sib raug zoo ntawm qhov voltage thiab tam sim no hauv a capacitor nyob rau hauv cov nqe lus calculus, lub Tam sim no los ntawm lub capacitor yog qhov derivative ntawm qhov voltage hla tus 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 qhov voltage hla nws hloov.
Tsis tas li ntawd, puas muaj tam sim no los ntawm lub capacitor?
Siv DC voltage ntawm lub tshuab capacitor tsis muaj kev coj ua tam sim no ntws dhau tus capacitor yog tias nws qhov nruab nrab insulating yog zoo meej insulator. Qhov no yog vim tias tsis muaj cov neeg nqa khoom pub dawb hauv qhov nruab nrab. Qhov no tam sim no tseem hu ua capacitive tam sim no . Nws ntws vim hloov hluav taws xob hloov D nrog lub sijhawm.
Ib sab saum toj no, koj ntsuas tam sim no hla lub capacitor li cas? Koj ua tsis tau txiav txim tus tam sim no ntawm tus nqi them capacitor tsuas yog txuas ammeter dhau nws terminals. Saib tus nqi them capacitor zoo li lub roj teeb, yog tias koj xav tau ntsuas tus tam sim no Koj yuav tsum muaj cov load txuas nrog nws thiab ammeter nyob rau hauv series ntawm Circuit Court.
Kuj paub, puas capacitors txwv tam sim no?
Capacitor yog zoo li lub thoob uas yog khaws cia electrostatic zog, raws li ib tug tas li voltage los yog tam sim no puas muaj los muab lub zog. Raws li tus nqi hauv lub capacitor nce exponentially ntau lub tam sim no hla lub capacitor yuav txo vim nws yuav tsis pub ib yam tam sim no kom hla dhau nws.
Puas capacitors hla AC?
Cov capacitor yog txuas ncaj qha hla lub AC muab hluav taws xob. Raws li cov khoom siv hluav taws xob nce thiab txo qis, lub capacitor tsub nqi thiab tso tawm raws li qhov kev hloov pauv no. Ib qho tam sim no yuav ntws los ntawm lub voj voog, thawj zaug hauv ib qho kev taw qhia, tom qab ntawd hauv lwm qhov. Txawm li cas los xij, tsis muaj qhov tam sim no ntws los ntawm qhov capacitor.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov tam sim no thiab cov khoom siv tam sim no?
Kev khiav ntawm electrons yog hu ua electron tam sim no. Electrons ntws los ntawm qhov tsis zoo terminal mus rau qhov zoo. Pa tam sim no los yog tam sim no yooj yim, coj zoo li cov neeg nqa khoom muaj txiaj ntsig ua rau tam sim no ntws. Pa tam sim no ntws los ntawm qhov zoo davhlau ya nyob twg mus rau qhov tsis zoo
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
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
Qhov twg yog qhov cua sov los ntawm qhov uas ua rau qhov tam sim no convection hauv lub mantle?
Lub tshav kub uas tsav cov convection tam sim no nyob rau hauv lub mantle los ntawm lub hauv paus ntawm lub ntiaj teb