Koj tuaj yeem tso ntau dua ob lub resistors hauv koob yog tias koj xav tau. Koj cia li ntxiv tag nrho cov kev tawm tsam kom tau txais tag nrho cov nqi tiv thaiv. Piv txwv li, yog tias koj xav tau 1, 800 Ω ntawm qhov tsis kam, koj tuaj yeem siv 1 kΩ resistor thiab yim 100 Ω resistors hauv series. Ntawm no, ob lub voj voog muaj qhov tsis sib xws.
Dab tsi ntxiv cov resistors hauv koob ua?
Ntxiv cov resistors hauv koob ib txwm nce tag nrho cov kev tawm tsam. Qhov tam sim no yuav tsum dhau los ntawm txhua tus resistor nyob rau hauv lem yog li ntxiv ib qho ntxiv resistor ntxiv rau qhov kev tawm tsam twb tau ntsib.
Yuav ua li cas thaum koj ntxiv kev tiv thaiv ntau dua rau cov kab hluav taws xob?
Nyob rau hauv ib lub voj voog, ntxiv ntau resistors nce tag nrho cov tsis kam thiab yog li txo qis tam sim no. Tab sis qhov opposite yog muaj tseeb nyob rau hauv ib tug parallel circuit vim hais tias ntxiv ntau resistors nyob rau hauv parallel tsim ntau xaiv thiab txo tag nrho cov kuj. Yog tias tib lub roj teeb txuas nrog cov resistors, tam sim no yuav nce.
Koj pom li cas tag nrho cov kev tawm tsam rau ib lub voj voog uas muaj ntau lub loads hauv series?
Nyob rau hauv ib lub voj voog koj yuav tsum xam tag nrho cov kev tawm tsam ntawm lub voj voog txhawm rau txheeb xyuas qhov amperage. Qhov no yog ua los ntawm ntxiv rau tus kheej qhov tseem ceeb ntawm txhua yam hauv koob.
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- RT=R1 + R2 + R3.
- 2 + 2 + 3=7 Ohms.
- R tag nrho yog 7 Ohms.
Yuav ua li cas thaum ntxiv cov resistors ntxiv?
Cov lus teb: Raws li ntau thiab ntau cov resistors ntxiv nyob rau hauv parallel rau ib lub voj voog, qhov sib npaug ntawm qhov hluav taws xob txo qis thiab tag nrho cov tam sim no ntawm lub voj voog nce. Ntxiv cov resistors nyob rau hauv parallel yog sib npaug rau muab ntau ceg los ntawm cov nqi yuav ntws.
