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Video: Yuav ua li cas koj xam tam sim no nrog voltage thiab kuj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ohms Txoj Cai thiab Lub Zog
- Txhawm rau nrhiav qhov Voltage, (V ) [V = I x R] V (volts) = I (amps) x R (Ω)
- Rau nrhiav Tam sim no, (I) [I = V ÷ R] I (amps) = V (volts) ÷ R (Ω)
- Txhawm rau nrhiav qhov Resistance, (R) [R = V ÷ I] R (Ω) = V (volts) ÷ I (amps)
- Kom pom lub hwj chim (P) [P = V x I] P (watts) = V (volts) x I (amps)
Ib yam li ntawd, tus qauv rau tam sim no yog dab tsi?
Cov tam sim no tuaj yeem pom los ntawm Ohm Txoj Cai, V = IR. Lub V yog lub roj teeb voltage, yog li yog R tuaj yeem txiav txim siab ces tus tam sim no tuaj yeem suav tau. Thawj kauj ruam, tom qab ntawd, yog nrhiav qhov tsis kam ntawm cov hlau: L yog qhov ntev, 1.60 m.
Ib tug kuj yuav nug, dab tsi yog qhov sib npaug rau tam sim no muaj peev xwm sib txawv thiab tsis kam? Rau xam tus tsis kam ntawm cov khoom siv hluav taws xob, ammeter yog siv los ntsuas qhov tam sim no thiab ib tug voltmeter los ntsuas qhov muaj peev xwm sib txawv . Cov tsis kam Tom qab ntawd tuaj yeem suav nrog Ohm Txoj Cai.
Nyob rau hauv no hais txog, dab tsi yog qhov tseeb xam rau kev tiv thaiv thaum tam sim no yog 4 amps thiab qhov voltage yog 24 volts?
a) 24 volt – 4amps ua = 20 awm. b) 24 volt + 4amps ua = 28 awm. c) 24 volt × 4amps ua = 96 awm.
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:
Yuav ua li cas koj xam lub cev muaj zog overload tam sim no?
Faib los ntawm qhov ntsuas tag nrho load tam sim no los ntawm lub npe tsav tsheb. Qhov no yuav yog qhov tseem ceeb load rau lub cev muaj zog. Yog tias lub cev muaj zog tam sim no yog 22A thiab qhov ntsuas tag nrho tam sim no yog 20A, ces qhov ntsuas qhov ntsuas yog 22/20 = 1.1. Qhov no txhais tau tias lub cev muaj zog yog overloaded los ntawm 10%
Yuav ua li cas koj xam amps ntawm volts thiab kuj?
Ohm txoj cai formula Lub resistor tam sim no kuv nyob rau hauv amps (A) yog sib npaug rau cov resistor voltage V nyob rau hauv volts (V) muab faib los ntawm cov kuj R nyob rau hauv ohms (Ω): V yog qhov voltage poob ntawm tus resistor, ntsuas nyob rau hauv Volts (V )
Yuav ua li cas hloov DC tam sim no rau AC tam sim no?
Lub hwj chim inverter, los yog inverter, yog apowerelectronic ntaus ntawv los yog circuitry uas hloov directcurrent (DC) mus rau alternating tam sim no (AC).Inputvoltage, tso zis voltage thiab zaus, thiab overallpower tuav nyob ntawm tus tsim ntawm lub specificdeviceor circuitry
Koj ntsuas qhov voltage thiab tam sim no hauv hluav taws xob hluav taws xob li cas?
Ib qho cuab yeej hu ua ammeter yog siv los ntsuas tam sim no. Qee hom ammeter muaj lub pointer ntawm lub dial, tab sis feem ntau muaj cov duab digital. Txhawm rau ntsuas qhov tam sim no ntws los ntawm cov khoom siv hauv Circuit Court, koj yuav tsum txuas lub ammeter hauv series nrog nws
Yuav ua li cas koj xam tag nrho cov kuj ntawm ib tug series Circuit Court?
Txhawm rau xam tag nrho cov kev tiv thaiv nyob rau hauv series circuits, nrhiav ib lub voj uas tsis muaj txoj hauv kev. Ntxiv tag nrho cov kev tawm tsam thoob plaws hauv Circuit Court ua ke los xam tag nrho cov kev tawm tsam. Yog tias koj tsis paub tus nqi ntawm tus kheej, siv Ohm txoj cai sib npaug, qhov twg tsis kam = voltage faib los ntawm tam sim no