Video: Dab tsi yog capacitor hauv physics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A capacitor yog ib qho khoom siv uas muaj ob qho kev ua "phaj" sib cais los ntawm cov khoom siv insulating. Thaum daim hlau muaj qhov sib txawv ntawm lawv, cov phiaj yuav tuav cov nqi sib npaug thiab sib npaug. Cov capacitance C ntawm a capacitor cais cov nqi + Q thiab −Q, nrog voltage V hla nws, txhais tau tias C = QV.
Ib yam li ntawd, lub capacitor ua li cas?
Capacitors tau dav siv los ua cov khoom siv hluav taws xob hauv ntau cov khoom siv hluav taws xob. Tsis zoo li lub resistor, lub capacitor tsis dissipate zog . Xwb, lub capacitor khw muag khoom zog nyob rau hauv daim ntawv ntawm ib tug electrostatic teb ntawm nws daim hlau.
Tsis tas li ntawd, koj txhais li cas los ntawm capacitance ntawm lub capacitor? Them nyiaj khaws cia muaj peev xwm ntawm a capacitor hu ua capacitance ntawm capacitor . Txhais : Capacitance ntawm lub capacitor yog txhais raws li qhov piv ntawm tus nqi khaws cia rau ib qho ntawm cov phiaj capacitor mus rau lub peev xwm ntawm daim hlau.
Kuj paub, dab tsi yog capacitor thiab nws chav tsev?
Hauv nws simplest form, ib capacitor muaj ob daim hlau uas sib cais los ntawm cov khoom siv insulating hu ua dielectric. Capacitance kuj nyob ntawm qhov dielectric tas li ntawm cov khoom sib cais ntawm daim hlau. Tus qauv chav tsev ntawm capacitance yog tus farad, abbreviated.
Koj tuaj yeem qhia tau li cas yog tias lub capacitor zoo?
Rau xeem tus capacitor Nrog ib tug multimeter, teem lub 'meter' nyeem nyob rau hauv lub siab ohms ntau, qhov chaw siab tshaj 10k thiab 1m ohms. Kov lub ' meter ' coj mus rau cov coj coj mus rau hauv lub capacitor , liab rau qhov zoo thiab dub rau qhov tsis zoo. Lub 'meter' yuav tsum pib ntawm xoom thiab tom qab ntawd maj mam txav mus rau infinity.
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