Funda futhi izibonelo zama-resistor ahambisanayo kanye nezibonelo zama-resistor alandelanayo.
Izinto Zokumelana Nokumelana Ezihambisanayo
Uma ama-resistor exhunywe njengasesithombeni ohlangothini, ama-resistor axhunywe ngokuhambisana.
Ishaja kagesi igcinwa ukuze ugesi kagesi (ugesi kagesi = ishaja kagesi egeleza ngesikhathi esithile) engena endaweni yegatsha ifane nogesi kagesi ophuma endaweni yegatsha. Kunezinhlobo eziningana zamagatsha ukuze ugesi ophelele = isamba semisinga kagesi egeleza egatsheni ngalinye. Ngokwezibalo I = I 1 + I 2 + I 3 . Ngenkathi umehluko wamandla kagesi noma i-voltage kagesi (V) egatsheni ngalinye inenani elifanayo.
I = V/R ngakho-ke isibalo esingenhla siyashintsha sibe yi-I = V/R1 + V/R2 + V/R3I-voltage kagesi inenani elifanayo ngakho lesi sibalo siyashintsha sibe yi-I = V (1/R).1 +1/R2 +1/R3). Uma ukumelana okulinganayo kungu-1/R khona-ke u-I = V (1/R). Ngakho-ke u-1/R = 1/R1 +1/R2 +1/R3.
Isekethe ehambisanayo inenzuzo yokuthi uma umugqa wamanje kuya kowodwa uphazamiseka, umugqa wamanje uyaqhubeka nokugeleza kwamanye ama-resistor. Kumjikelezo wochungechunge, uma umugqa wamanje kuya kowodwa uphazamiseka, wonke ama-resistor ngeke ageleze. Ama-resistor angaba ama-bulb okukhanya, izingxenye ze-resistor, nezinye izingxenye.
Isibonelo sama-resistor ahambisanayo:
1. Kunikezwe u-R1 = 2 Ω, R2 = 3 Ω. Ama-resistor amabili axhunywe ngokuhambisana. Liyini inani le-resistor yokufaka esikhundleni? (Ω = Ohm).
Ingxoxo
1/R = 1/R1 +1/R2 = 1/2 + 1/3 = 3/6 + 2/6 = 5/6
R = 6/5 = 1,2 Ω.
Lo mphumela ubonisa ukuthi inani lokumelana kokufaka esikhundleni lincane kunenani le-resistor ngayinye exhunywe ngokufana.
2. Ama-resistor amabili R1 = 50 Ω kanye ne-50 Ω zixhunywe ngochungechunge futhi zihambisana, zixhunywe ebhethrini le-12 Volt. Thola (a) ukumelana okulinganayo (b) ugesi odlula ku-resistor ngayinye.
Ingxoxo
(A)
Isekethe yochungechunge:
R = R1 + R2 = 50 Ω + 50 Ω = 100 Ω.
Isekethe ehambisanayo:
1/R = 1/R1 +1/R2 = 1/50 + 1/50 Ω = 2/50
R = 50/2 = 25 Ω
(B)
Isekethe yochungechunge:
Mina = V / R = 12 Volts / 100 Ω = 0,12 Ampere
Isekethe ehambisanayo:
Mina = V / R = 12 Volts / 25 Ω = 0,48 Ampere
Le miphumela ikhombisa ukuthi ugesi ophelele ogeleza kwisekethe efanayo mkhulu, kanti ugesi ophelele ogeleza kwisekethe yochungechunge uncane.
