Video: Qhov voltage thiab tam sim no ua haujlwm li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov hluav taws xob yog lub siab los ntawm cov hluav taws xob hluav taws xob hluav taws xob lub zog uas thawb cov hluav taws xob hluav taws xob ( tam sim no ) los ntawm ib tug conducting voj, enabling lawv ua haujlwm xws li illuminating lub teeb. Hauv luv luv, hluav taws xob = siab, thiab nws yog ntsuas nyob rau hauv volts (V). Tam sim no rov qab mus rau lub zog.
Ib yam li ntawd, nws tau nug, tam sim no thiab voltage cuam tshuam li cas?
Cov tam sim no yog ncaj qha proportional rau lub hluav taws xob thiab inversely proportional rau qhov tsis kam. Qhov no txhais tau hais tias nce lub hluav taws xob yuav ua rau tam sim no kom nce, thaum nce qhov tsis kam yuav ua rau lub tam sim no txo.
Dab tsi yog 3 hom ntawm Ohm txoj cai? Ohm txoj cai
- Hloov tam sim no.
- Capacitance.
- Direct tam sim no.
- Hluav taws xob tam sim no.
- Hluav taws xob muaj peev xwm.
- Electromotive quab yuam.
- Impedance.
- Inductance.
Khaws qhov no hauv kev xav, dab tsi yog qhov voltage hauv cov lus yooj yim?
Qhov hluav taws xob yog dab tsi ua rau cov nqi hluav taws xob txav mus. Nws yog 'thawj' uas ua rau cov nqi txav mus rau hauv ib lub xaim lossis lwm yam khoom siv hluav taws xob. Qhov hluav taws xob tseem hu ua, hauv qee qhov xwm txheej, electromotive force (EMF). Qhov hluav taws xob yog qhov hluav taws xob muaj peev xwm sib txawv, qhov sib txawv ntawm hluav taws xob muaj peev xwm ntawm ob qhov chaw.
Vcc voltage yog dab tsi?
Vcc . Ib qho khoom siv hluav taws xob uas hais txog hluav taws xob los ntawm lub hwj huam mov txuas nrog lub "collector" davhlau ya nyob twg ntawm ib tug bipolar transistor. Hauv NPN bipolar (BJT) transistor, nws yuav yog +Vcc ua, thaum nyob hauv PNP transistor, nws yuav yog -Vcc ua. Ob tsab ntawv (cc) xa mus rau lub hwj chim mov voltages.
Pom zoo:
Dab tsi yog qhov kev sib raug zoo ntawm lej ntawm qhov tam sim no tsis kam thiab voltage gizmo?
Ohm txoj cai. Kev sib raug zoo ntawm qhov hluav taws xob, tam sim no, thiab kev tiv thaiv tau piav qhia los ntawm Ohm txoj cai. Qhov kev sib npaug no, i = v / r, qhia peb tias tam sim no, i, ntws los ntawm Circuit Court yog ncaj qha proportional rau qhov voltage, v, thiab inversely proportional to the resistance, r
Tam sim no thiab qhov voltage tsis tu ncua yog dab tsi?
'Cov khoom siv hluav taws xob tsis tu ncua xa cov hluav taws xob ruaj khov thiab sib txawv tam sim no rau LED. Cov khoom siv hluav taws xob tsis tu ncua xa cov tam sim no ruaj khov thiab sib txawv voltage rau LED
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
Yuav ua li cas koj xam tam sim no nrog voltage thiab kuj?
Ohms Txoj Cai thiab Lub Hwj Chim Kom Pom Qhov Voltage, (V) [V = I x R] V (volts) = I (amps) x R (Ω) Kom pom qhov tam sim no, (I) [I = V ÷ R] I ( amps) = V (volts) ÷ R (Ω) Nrhiav qhov Resistance, (R) [R = V ÷ I] R (Ω) = V (volts) ÷ I (amps) Nrhiav Lub Hwj Chim (P) [P = V x I] P (watts) = V (volts) x I (amps)
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