Sidoo kale baro tusaalooyin ka mid ah iska caabinta isbarbar socda iyo tusaalooyin ka mid ah iska caabinta taxanaha ah.
Qalabka Iska caabinta Taxanaha
Haddii iska caabintu ay isku xiran yihiin sida ku cad jaantuska kore, waxay ku xiran yihiin taxane. Iska caabintu waxay noqon kartaa qaybaha iska caabinta, laambado, ama qalab kale oo dahaarka korontada ku shaqeeya.
Dakhli koronto (Q) waa mid joogto ah si dakhli koronto uu uga gudbo iska caabbinta 1 (R1 ) = dakhli koronto oo dhex mara iska caabbinta 2 (R2 ) = dakhli koronto oo dhex mara iska caabbinta 3 (R3 ) . Dakhli koronto (I) waa dakhli koronto oo dhex mara muddo cayiman (I = Q/t), sidaas darteed dakhli koronto oo dhex mara iska caabbinta 1 (I1 ) = dakhli koronto oo dhex mara iska caabbinta 2 (I2 ) = dakhli koronto oo dhex mara iska caabbinta 3 (I3 ) . Xisaab ahaan, dakhli koronto oo dhan (I) = I1 = I2 = I3.
Dhanka kale, danabka korontada (V) wuu yaraadaa marka danabka korontada uu dhex maro iska caabin kasta. Danabka korontada, oo sidoo kale loo yaqaan farqiga awoodda korontada, waa tamarta awoodda korontada ee halbeeg kasta oo danabka korontada ah. Danabka korontada ayaa yaraada sababtoo ah tamarta korontada waxaa loo isticmaalaa iska caabin kasta oo koronto ah. Markaa danabka korontada oo dhan (V) wuxuu la mid yahay wadarta danabka korontada ee iska caabin kasta. Xisaab ahaan, danabka korontada oo dhan (V) = V 1 + V 2 + V 3. V = IR si wadarta danabka korontada ee V = IR 1 + IR 2 + IR 3. Hadda korontada ku socota iska caabin kasta waa isku mid sidaas darteed isla'egtan waxay isu beddeshaa V = I (R 1 + R 2 + R 3 ).
Iyada oo lagu saleynayo isla'egta kore, waxaa lagu soo gabagabeynayaa in isku-darka iska caabbinta korantada (R) ama iska caabbinta beddelka ee iska caabbinta korantada ee ku xiran taxanaha ay la mid tahay wadarta iska caabbinta korontada kasta, xisaab ahaan R = R 1 + R 2 + R 3. Haddii ay jiraan laba iska caabbin oo keliya oo ku xiran taxanaha, qiimaha iska caabbinta beddelka (R) = R 1 + R 2. Haddii ay jiraan afar iska caabbin oo ku xiran taxanaha, qiimaha iska caabbinta beddelka (R) = R 1 + R 2 + R 3 + R 4. Sidoo kale, haddii ay jiraan shan ama in ka badan shan iska caabbin oo ku xiran taxanaha.
Tusaale ahaan dhibaatada iska caabinta taxanaha ah:
1. Marka la eego R 1 = 2 Ω, R 2 = 3 Ω iyo R 3 = 4 Ω. Saddexda iska caabin ayaa isku xiran taxane ahaan. Waa maxay qiimaha iska caabinta beddelka ah? (Ω = Ohm).
Dood
R = R 1 + R 2 + R 3 = 2 + 3 + 4 = 9 Ω.
Natiijadani waxay muujinaysaa in qiimaha iska caabbinta beddelka ahi uu ka weyn yahay qiimaha iska caabbinta ee iska caabbin kasta oo taxane ah oo ku xiran.
2. Laba iska caabin ah oo R 1 = 50 Ω iyo R 2 = 50 Ω ayaa si taxane ah loogu xiray waxayna ku xiran yihiin baytari 12 Volt ah. Go'aami (a) iska caabinta u dhiganta (b) korantada oo dhex marta iska caabin kasta.
Dood
(a) R = R 1 + R 2 = 50 Ω + 50 Ω = 100 Ω.
(b) I = V / R = 12 Volts / 100 Ω = 0,12 Ampere
