Basic qhia txog cov resistors
Tso lus
Resistor feem ntau hu ua resistors ncaj qha hauv lub neej txhua hnub. Nws yog ib qho kev txwv tam sim no. Tom qab txuas cov resistor hauv Circuit Court, tus nqi ntawm cov resistor yog tsau, feem ntau yog ob tus pins, uas tuaj yeem txwv qhov tam sim no los ntawm cov ceg txuas nrog nws. Ib tug resistor uas nws tsis tuaj yeem hloov pauv tau yog hu ua tus resistor ruaj. Kev hloov pauv tsis sib xws yog hu ua potentiometer lossis hloov pauv hloov pauv. Ib qho zoo tagnrho resistor yog linear, uas yog, tam sim no tam sim no los ntawm tus resistor yog proportional rau lub tam sim no voltage thov. Variable resistor rau voltage divider. Ntawm lub cev resistor, nias ib los yog ob lub xov tooj tshem tau. Txoj haujlwm sib cuag txiav txim siab qhov kev tawm tsam ntawm qhov kawg ntawm lub cev resistor thiab qhov sib cuag.
Lub davhlau ya nyob twg voltage thiab tam sim no muaj kev sib raug zoo ntawm kev ua haujlwm, thiab ob lub davhlau ya nyob twg uas qhia txog lub peev xwm hloov hluav taws xob hluav taws xob mus rau lwm hom ntawv yog sawv cev los ntawm tsab ntawv R, thiab chav tsev yog ohms. Cov khoom siv tiag tiag xws li qhov muag teeb, cov xaim hluav taws xob, cov khoom siv hluav taws xob, thiab lwm yam tuaj yeem sawv cev ua cov khoom tiv thaiv.
Tus nqi tsis kam ntawm cov khoom tiv thaiv feem ntau muaj feem xyuam rau qhov kub thiab txias, cov khoom siv, qhov ntev, thiab qhov chaw hla ntu. Lub cev kom muaj nuj nqis uas ntsuas qhov tsis kam mus rau qhov kub thiab txias yog qhov ntsuas kub coefficient, uas txhais tau tias yog feem pua ntawm cov nqi tiv thaiv uas hloov thaum qhov kub thiab txias nce 1 degree. Lub hauv paus tseem ceeb ntawm lub cev muaj zog yog hloov hluav taws xob rau hauv thermal zog. Nws tseem tuaj yeem hais tias nws yog lub zog siv hluav taws xob, thiab tam sim no dhau los ntawm nws los tsim lub zog sab hauv. Resistors feem ntau ua lub luag haujlwm ntawm qhov sib faib hluav taws xob thiab tam sim no shunt hauv Circuit Court. Rau cov teeb liab, ob qho tib si AC thiab DC cov teeb liab tuaj yeem dhau los ntawm cov resistors.
