Video: Vim li cas peb siv AC tsis yog DC?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov loj kom zoo dua uas AC hluav taws xob tau dhau lawm DC hluav taws xob yog uas AC voltages tuaj yeem hloov pauv mus rau qib siab dua lossis qis dua, thaum nws yog nyuaj rau ua uas nrog DC voltages. Qhov no yog vim hais tias cov high voltages los ntawm lub hwj chim chaw nres tsheb yuav tau yooj yim txo mus rau ib tug ruaj ntseg voltage rau siv hauv tsev.
Ib yam li ntawd, koj tuaj yeem nug, vim li cas peb thiaj siv AC hloov DC?
DC yog ntau yooj yim los tswj, yog thiab yooj yim rau propagate tshaj DC teeb liab. Yog peb siv AC nyob rau hauv feem ntau ntawm cov hluav taws xob circuits xwb ntawm DC , Nws yuav tsim kev ua haujlwm ntxiv rau kev tuav cov theem-ua haujlwm ntawm cov teeb liab. Nws yuav nyuaj dua los muab lawv los ntawm cov roj teeb.
Tsis tas li ntawd, AC puas zoo dua DC? Thaum hloov hluav taws xob hla kev deb heev, AC yog zoo dua DC vim txoj kev yooj yim peb tuaj yeem siv los nce thiab nqis qis voltages. Transformers muaj peev xwm ua qhov no nrog AC tab sis tsis yog DC , los yog tsawg kawg yog qhov nyuaj dua dua li DC.
Ua li no, vim li cas peb tsis siv DC hauv peb lub tsev?
Cov qib ntawm DC Voltage tsis tuaj yeem hloov tau yooj yim. Yog li peb Tsis tuaj yeem tau txais kev xav tau hluav taws xob rau cov khoom siv hluav taws xob thiab khoom siv hluav taws xob (xws li 5 Volts, 9 Volts 15 Volts, 20 thiab 22 Vim muaj teeb meem kev sib hloov, hluav taws xob tsis tuaj yeem tsim tawm ntawm High ( DC ) Voltage. Feem ntau ntawm koj tsev cov khoom siv thiab cov khoom siv tam sim no ua haujlwm rau DC …
Qhov twg siv AC thiab DC tam sim no?
Hloov tam sim no , AC feem ntau yog siv rau zog kev faib tawm, uas yog vim li cas lub hauv paus tseem ceeb hauv peb lub tsev thiab tom haujlwm muab ib qho hloov tam sim no rau zog xijpeem xav tau, tab sis ncaj qha tam sim no , DC yog dav dua siv rau electronics boards lawv tus kheej thiab rau ntau lwm yam kev siv.
Pom zoo:
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Vim li cas peb thiaj li kho cov coefficients thaum ntsuas cov tshuaj sib npaug thiab tsis yog cov ntawv sau npe?
Thaum koj hloov cov coefficients, koj tsuas yog hloov tus naj npawb ntawm cov molecules ntawm cov khoom tshwj xeeb. Txawm li cas los xij, thaum koj hloov cov ntawv sau npe, koj tab tom hloov cov tshuaj nws tus kheej, uas yuav ua rau koj qhov sib npaug tshuaj tsis raug
Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
Lub zog muaj peev xwm hluav taws xob Ue yog lub zog muaj peev xwm khaws cia thaum cov nqi tawm ntawm qhov sib npaug (xws li lub zog muaj peev xwm gravitational). Lub peev xwm hluav taws xob zoo ib yam, tab sis ib tus nqi, Ueq. Ib qho hluav taws xob muaj peev xwm sib txawv ntawm ob lub ntsiab lus hu ua voltage, V = Ue2q−Ue1q
Vim li cas lub cube cag ntawm tus lej tsis zoo yog tus lej tsis zoo?
Tus lej tsis zoo lub voos xwmfab hauv paus yuav tsis zoo Txij li qhov ntsuas tus lej txhais tau tias tsa nws mus rau lub zog thib 3 - uas yog khib - lub voos xwmfab ntawm cov lej tsis zoo yuav tsum yog qhov tsis zoo. Thaum lub qhov hluav taws xob tawm (xiav), qhov tshwm sim tsis zoo. Thaum lub qhov hluav taws xob qhib (daj), qhov tshwm sim yog qhov zoo
Vim li cas tsis zoo thiab tsis zoo yog qhov zoo?
Thaum koj muab qhov tsis zoo los ntawm qhov tsis zoo koj tau txais qhov zoo, vim tias ob lub cim tsis zoo raug muab tso tseg