TD series ib theem hnub ci zog inverter
1. Feem ntau, lub voltmeter tuaj yeem hloov kho los ntawm microammeter (ib hom ammeter) lossis rhiab ammeter.
2. Nyob rau hauv cov xwm txheej uas tag nrho cov kev tsis ncaj ncees tam sim no thiab sab hauv tsis kam ntawm microammeter yog tas li, tsuav yog ib qho loj txaus resistor txuas nrog hauv series, qhov hluav taws xob uas nws tuaj yeem tiv taus ntawm ob qho kawg kuj tseem yuav nce ntxiv. Nws raug nquahu kom teeb tsa tag nrho qhov tsis ncaj ncees tam sim no raws li kuv, thiab qhov kev tiv thaiv sab hauv ntawm lub microammeter yog r, thiab qhov kev tawm tsam ntawm cov kev tawm tsam yog R, tom qab ntawd qhov ntau ntawm cov hloov voltmeter yog I * (R ntxiv rau r). Qhov loj R, qhov loj dua qhov ntau. Qhov no tuaj yeem siv los ua voltmeter Vim li cas nws yuav tsum tau txuas nrog hauv series Ib qho ntawm cov laj thawj rau kev ua haujlwm loj.
3. Thaum lub voltmeter ua hauj lwm, nws yog txuas nrog nyob rau hauv parallel nrog lub Circuit Court los yog kuj yuav tsum tau ntsuas. Lub sijhawm no, qhov hluav taws xob ntawm ob qho kawg ntawm voltmeter thiab Circuit Court yog sib npaug. Yog tias qhov kev tiv thaiv ntawm voltmeter tsis tuaj yeem tsis quav ntsej, tag nrho cov kev tiv thaiv ntawm cov kab hluav taws xob sib txuas yog tsim los ntawm voltmeter thiab qhov ntsuas tsis kam. Tus nqi: 1 / R thiab=1 / R yuav tsum ntsuas ntxiv rau 1 / R voltmeter
Yog tias thiab tsuas yog thaum qhov kev tiv thaiv sab hauv ntawm voltmeter yog infinite, nws tuaj yeem txiav txim siab tias 1 / R voltmeter=0, ces tus nqi tsis kam ntawm cov kab hluav taws xob sib txuas tuaj yeem suav tias yog tus nqi tsis kam ntawm qhov tsis kam ntsuas. , thiab tam sim no los ntawm voltmeter tuaj yeem suav tias yog 0, Nws suav tias yog ob qho kawg ntawm voltmeter tsis koom nrog hauv Circuit Court.
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