Video: Puas yog tam sim no nyob ntawm kev tawm tsam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tam sim no nyiam txav mus los ntawm cov conductors nrog qee qhov kev sib txhuam, lossis kev tawm tsam rau kev txav. Tus nqi ntawm tam sim no nyob rau hauv ib lub voj voog nyob ntawm tus nqi ntawm qhov voltage thiab tus nqi ntawm tsis kam nyob rau hauv Circuit Court los tawm tsam tam sim no ntws. Ib yam li voltage, tsis kam yog ib qho txheeb ze ntawm ob lub ntsiab lus.
Ua raws li qhov no hauv kev xav, yuav ua li cas tiv thaiv tam sim no?
Ohm txoj cai hais tias hluav taws xob tam sim no (I) ntws hauv Circuit Court yog proportional rau qhov voltage (V) thiab inversely proportional rau tus tsis kam (R). Ib yam li ntawd, nce lub tsis kam ntawm Circuit Court yuav txo qis tam sim no ntws yog tias qhov voltage tsis hloov.
Ib yam li ntawd, tam sim no nyob ntawm qhov ntev? Hauv luv luv, tsis yog, tam sim no tsis cuam tshuam los ntawm ntev ntawm tus neeg xyuas pib (zoo, hauv lub ntiaj teb tiag tiag tsawg kawg).
Tsuas yog li ntawd, puas yog tam sim no nyob ntawm qhov muaj peev xwm sib txawv?
Lub zog, Tam sim no & Muaj peev xwm sib txawv Los ntawm ib tug Resistor. Cov tam sim no los ntawm ib tug resistor nyob ntawm ntawm muaj peev xwm sib txawv hla lub resistor thiab qhov tsis kam. Ohm txoj cai piav txog qhov kev sib raug zoo no, thiab peb yuav kawm paub txiav txim siab txog kev sib raug zoo ntawm lub hwj chim, tam sim no , thiab hluav taws xob.
Dab tsi yog txhais los ntawm 1 ampere?
Ib ampere yog ib chav ntsuas ntawm tus nqi ntawm electron ntws los yog tam sim no nyob rau hauv ib tug hluav taws xob conductor. Ib ampere ntawm tam sim no sawv cev ib coulomb ntawm hluav taws xob nqi (6.24 x 1018 tus nqi thauj khoom) txav dhau los ntawm qhov tshwj xeeb hauv ib thib ob. Cov ampere muaj npe tom qab Andre Marie Ampere , Fabkis physicist (1775-1836).
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
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Dab tsi yog txoj kev xav ntawm abiogenesis raws li tau hais los ntawm Oparin thiab Haldane nws puas cuam tshuam rau Pasteur qhov kev sim?
Haldane thiab Oparin theorized tias 'kua zaub' ntawm cov organic molecules ntawm lub ntiaj teb thaum ub yog lub hauv paus ntawm lub neej lub tsev thaiv. Kev sim los ntawm Miller thiab Urey tau pom tias tej yam tshwm sim ntawm lub ntiaj teb thaum ntxov tuaj yeem tsim cov organic molecules uas xav tau rau lub neej kom tshwm sim
Yuav tsum muaj zog dab tsi los tswj qhov ceev ntawm qhov khoom yog tias tsis muaj kev tawm tsam?
Yog tias tsis muaj kev tawm tsam ces tsis tas yuav tsum muaj lub zog los tswj qhov ceev ntawm cov khoom. Raws li Newton thawj txoj cai lij choj, lub cev nyob rau hauv cov lus tsa suab nyob twj ywm thiab lub cev atrest nyob twj ywm kom txog thaum thiab tshwj tsis yog ua raws li qee qhov kev quab yuam sab nraud
Dab tsi yog qhov kev ua yuam kev hauv kev sim nrog cov hluav taws xob tam sim no?
Cov peev txheej ntawm kev ua yuam kev suav nrog cov cuab yeej, ib puag ncig, txheej txheem, thiab tib neeg. Tag nrho cov kev ua yuam kev no tuaj yeem ua tsis tau lossis ua haujlwm nyob ntawm seb lawv cuam tshuam li cas. Instrumental yuam kev tshwm sim thaum cov cuab yeej siv tsis raug, xws li qhov sib npaug uas tsis ua haujlwm (SF Fig