Yuav ua li cas ua tau ib tug thaum uas tig mus resistor?

Nyob rau hauv thiaj li yuav tswj tus nqi ntawm cov tam sim no thiab voltage nyob rau hauv ib tug Circuit Court ua los ntawm resistors kev compound. Series-kev cob cog rua ntsiab txwv tam sim no nyob rau hauv lub Circuit Court, thiab kev cob cog rua ntawm thaum uas tig mus ua ib tug ntxiv voltage nco, yog li limiting lub peev xwm sib txawv muaj nuj nqis rau cov kev pab uas muaj nyob rau hauv tib lub saw.

Koj siv tau ib tug resistor cov yam nqi, tiam sis tsis yog ib txwm tau mus ua tus tsim nyog suav txheeb xyuas pom tus nqi. Yog li ntawd nws yog advisable mus xaiv cov kuj los ntawm ib tug ua ke ntawm txawv tshaj.

Thaum uas tig mus kev twb kev txuas ntawm resistors yog ua los ntawm kev txuas pib thiab xaus ntawm tag nrho cov ntsiab nyob rau hauv ib ntawm. Yog li, ib tug Circuit Court yog tsim nyob qhov twg tag nrho cov voltage nco nyob rau hauv Circuit Court nyob rau ntawm tus nqi ntawm txhua lub caij.
Tag nrho cov kuj ntawm lub resistors kev cob cog rua nyob rau hauv parallel, yog xam los ntawm ib tug tshwj xeeb mis.

Khaws nyob rau hauv lub siab hais tias yog koj ua ib tug thaum uas tig mus kev twb kev txuas ntawm resistors, tag nrho cov kuj ntawm tag nrho cov ntsiab mas nws yeej yuav me dua cov tsawg tshaj plaws kuj muaj nyob rau hauv lub Circuit Court.

Txawm li cas los, muaj ib co tshwj xeeb no, uas tsis tau tsis nco qab lawm. Yog hais tias lub Circuit Court yog enabled tsuas yog ob tug resistors, lawv tag nrho kuj yog xam raws li qhov sib txawv ntawm lawv cov khoom thiab sum: Rmain = R1R2 / R1 + R2.

Ib tug ntxiv tshwj xeeb cov ntaub ntawv yog ib tug compound uas yog muaj nyob rau hauv ntau resistors ntawm tib kuj muaj nqis. Nyob rau hauv cov ntaub ntawv no, tag nrho cov nqi yog txiav txim raws li qhov sib txawv muaj nuj nqis ntawm tus xov tooj ntawm kuj hais, piv txwv li: Rmain = R1 / n.

Txij li thaum thaum uas tig mus kev twb kev txuas ntawm resistors - ob ntawm, nws yog tseeb hais tias cov sib txawv ntawm lawv tej zaum - nws yog tib yam li lub peev xwm sib txawv ntawm cov ob ntshav. Yog li, nws yog tsim nyog los xaus hais tias cov voltage rau txhua tus lub ntsiab yog muaj sib npaug. Nws zoo li no: U = U1 + U2 + U3 + ... + Un ..

Yog hais tias ob qho tag nrho ntshav yog txoj kev ua ib tug uas tig mus kev twb kev txuas ntawm resistors yog ncaj qha mus txuas nrog rau cov terminals ntawm lub hwj chim qhov twg los, lub voltage ntawm txhua tus ntawm cov resistances yuav sib npaug zos rau cov voltage uas generates qhov nws tus kheej: U1 + U2 + U3 + ... + Un = U ..

Lwm feature ntawm lub tebchaw ntawm resistors thaum uas tig mus kev twb kev txuas Circuit Court yog ib qho hluav taws xob tam sim no. Nws yog faib los ntawm cov ceg nyob rau hauv rov qab proportional rau tus kuj cov cheeb tsam. Nyob rau hauv lwm yam lus, ntau dua qhov lub kuj, cov tsawg tam sim no, thiab conversely, ntau dua qhov lub tam sim no, lub qis lub kuj. Qhov no yog thawj Ohm txoj kev cai: I = U / R.

Tag nrho cov tam sim no nyob rau hauv ib tug node yog lub sum ntawm tam sim no qhov tseem ceeb nyob rau hauv txhua ceg nyias. Tom qab tag nrho, cov nqi yuav tsis noog nyob rau hauv cov ntshav, ces nws yuav tsum tau muab sau tseg ua ntej Kirchhoff txoj cai, uas hais tias: "Lub sum ntawm cov dej tsaws ntxhee, uas yog muaj nyob rau hauv ib tug node yog sib npaug zos rau qhov tawm ntawm cov dej tsaws ntxhee uas tuaj tawm ntawm nws." Peb yuav hais yooj yim - lub sum ntawm currents ntawm ib tug node yog pes tsawg. Thiab sau qhia yog raws li nram no: "Tus sum ntawm cov currents yog sib npaug zos rau zero."

Nthuav no yog cov kev cai uas muaj feem rau hauv Circuit Court tsis muaj inductance thiab capacitance. Yog hais tias thaum uas tig mus kev twb kev txuas ntawm resistors yog tib yam Circuit Court nrog lub kauj los yog cov capacitor, nws yog tsim nyog los nrhiav tau nyob rau hauv view ntawm lub impedance ntawm tag nrho cov ntsiab. Ua li no, xam inductance thiab capacitance.