Ib lub resistor yog ib qho khoom hauv ib lub voj voog hluav taws xob uas tswj qhov ntau ntawm cov hluav taws xob tam sim no. Cov resistors siv hauv cov voj voog hluav taws xob feem ntau yog cylindrical hauv cov duab nrog hlau ntawm ob qho kawg. Tus nqi tsis kam ntawm lub resistor yog qhia los ntawm cov lej xim thiab tso tawm rau ntawm qhov chaw ntawm lub resistor.
Tus nqi tsis kam ntawm lub resistor tuaj yeem txiav txim siab los ntawm kev txhais cov xim code ntawm lub resistor . Txhawm rau kom nkag siab qhov no, ua ntej tshuaj xyuas cov lus hauv qab no, tom qab ntawd kawm qhov teeb meem piv txwv rau kev txiav txim siab tus nqi tsis kam ntawm lub resistor.
Piv txwv lo lus nug 1:
Tus nqi tsis kam ntawm lub resistor hauv daim duab ntawm sab yog ...
Kev Sib Tham
Ob xim thawj zaug sawv cev rau thawj ob tus lej ntawm tus nqi tsis kam, xim thib peb sawv cev rau lub zog ntawm kaum siv rau kev sib npaug thiab xim thib plaub sawv cev rau qhov kev kam rau siab.
Xim thawj zaug = liab = 2
Xim thib ob = txiv kab ntxwv = 3
Xim thib peb = xim av = 101 = 10
Xim thib plaub = kub = 5%
Tus nqi tiv thaiv ntawm lub 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 tiv thaiv tsawg kawg nkaus yog 230 Ω - 11,5 Ω = 218,5 Ω thiab qhov tiv thaiv siab tshaj plaws yog 230 Ω + 11,5 Ω = 241,5 Ω
Piv txwv lo lus nug 2:
Tus nqi tsis kam ntawm lub resistor hauv daim duab ntawm sab yog dab tsi?
Kev Sib Tham
Xim thawj zaug = xim av = 1
Xim thib ob = dub = 0
Xim thib peb = xiav = 106 = 1000.000
Xim thib plaub = kub = 5%
Tus nqi tiv taus ntawm lub resistor yog 10.000.000 Ω 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 ces qhov tsawg kawg nkaus tiv taus yog 10.000.000 Ω - 500.000 Ω = 9.500.000 Ω thiab qhov siab tshaj plaws tiv taus yog 10.000.000 Ω + 500.000 Ω = 10.500.000 Ω.
