Tsab xov xwm hais txog Resistor xim code
Tus resistor yog ib qho ntawm lub voj voog hluav taws xob uas ua haujlwm los tswj tus lej ntawm cov hluav taws xob tam sim no. Feem ntau, muaj ob hom resistors, uas yog cov hlau coil resistors thiab cov carbon resistors. Cov hlau dov resistors feem ntau yog siv hauv chav kuaj, ua los ntawm kev qhwv cov hlau zoo rau ntawm qhov chaw ntawm lub raj insulator. Cov carbon resistors feem ntau yog siv hauv cov voj voog hluav taws xob, cylindrical, thiab muaj cov xov hlau ntawm ob qho kawg. Tus nqi ntawm cov carbon resistor tsis kam yog qhia hauv cov xim code thiab tso tawm rau ntawm qhov chaw ntawm lub resistor.
Tus nqi tsis kam ntawm lub resistor tuaj yeem paub los ntawm kev txhais cov xim code ntawm lub resistor. Yuav kom nkag siab qhov no, ua ntej saib cov lus hauv qab no, tom qab ntawd kawm qhov teeb meem piv txwv los txiav txim siab tus nqi tsis kam ntawm lub resistor.
Piv txwv teeb meem 1:
Tus nqi resistor resistance ntawm daim duab yog ...
tshuaj:
Ob xim thawj zaug sawv cev rau thawj ob tus lej ntawm tus nqi tsis kam, xim thib peb sawv cev rau lub zog kaum uas siv los sib npaug, thiab xim thib plaub sawv cev rau kev kam rau siab ntawm kev hloov pauv.
Xim thawj zaug = liab = 2
Xim thib ob = txiv kab ntxwv = 3
Xim thib peb = xim av = 101 = 10
Xim plaub = kub = 5%
Tus nqi resistor yog 230 Ω nrog qhov sib txawv ntawm 5% x 230 Ω = 11.5 Ω. Yog tias muaj kev hloov pauv ntawm qhov kub thiab txias, qhov tsawg kawg nkaus tsis kam yog 230 11 – 11.5 Ω = 218.5 Ω thiab qhov siab tshaj plaws tsis kam yog 230 Ω + 11.5 Ω = 241.5 Ω.
Piv txwv teeb meem 2:
Tus nqi ntawm qhov tsis kam ntawm resistor hauv daim duab yog dab tsi?
tshuaj:
Xim thawj zaug = xim av = 1
Xim thib ob = dub = 0
Xim thib peb = xiav = 10 6 = 1000,000
Xim plaub = kub = 5%
Tus nqi resistor yog 10,000,000,000 nrog qhov sib txawv ntawm 5% x 10,000,000 Ω = 500,000 Ω. Yog tias muaj kev hloov pauv ntawm qhov kub thiab txias, qhov tsawg kawg nkaus yog 10,000,000 500 - 500,000 Ω = 9,500,000 Ω thiab qhov siab tshaj plaws yog 10,000,000 Ω + 500,000 Ω = 10,500,000 Ω.
