Mataupu e uiga i Resistors i le parallel
Afai e feso'ota'i ia resistors e pei ona i ai i le ata, e feso'ota'i fa'atasi ia resistors.
O le tafe eletise (tafe eletise = le eletise e tafe i se vaitaimi) e ulufale atu i le nofoaga e feso'ota'i ai e tutusa ma le tafe eletise e alu ese mai le nofoaga e feso'ota'i ai. E tele ni feso'ota'iga ina ia tutusa ai le aofa'i o le tafe eletise = le aofa'i o le tafe eletise o lo'o tafe i feso'ota'iga ta'itasi. I le fa'amatematika, I = I 1 + I 2 + I 3. Ae o le eseesega o le gafatia eletise po'o le voltage eletise i feso'ota'iga ta'itasi e tutusa.
I = V/R o lea ua suia ai le fua faatatau o loʻo i luga i le I = V/R1 + V/R2 + V/R3 . E tutusa le voltage eletise, o lea ua suia ai lenei fua faatatau i le I = V (1/R1 + 1/R2 + 1/R3 ) . Afai o le tetee tutusa o le 1/R ona I = V (1/R). O lea la, 1/R = 1/R1 + 1/R2 + 1/ R3.
E iai le lelei o matagaluega fa'alava tutusa, afai e motusia le tafe eletise i se tasi o resistors, e fa'aauau pea ona tafe le tafe eletise i isi resistors. Ae i le fa'asologa fa'asolosolo, afai e motusia se tafe eletise i le tasi resistor, o lona uiga o le a le fa'aeletiseina uma resistors.
Fa'ata'ita'iga o le fa'afitauli 1:
Ua iloa o le R 1 = 2 Ω, R 2 = 3 Ω. E tutusa uma ia resistors. O le a le tau o le resistor tutusa? (Ω = Ohm).
fofo:
1/R = 1/R 1 + 1/R 2 = 1/2 + 1/3 = 3/6 + 2/6 = 5/6
R = 6/5 = 1.2 Ω.
O lenei taunuuga e faʻaalia ai o le tau tutusa o le resistor e laʻititi ifo nai lo le tau o resistor tutusa taʻitasi.
Fa'ata'ita'iga o le fa'afitauli 2:
E lua R 1 = 50 Ω ma le 50 resistors ua feso'ota'i fa'asolosolo ma fa'alava, ua feso'ota'i i se maa 12 Volt. Fuafua:
(a) O le tete'e tutusa
(b) Tafe eletise e ui atu i tete'e ta'itasi
fofo:
(a) Resistors i le faasologa:
R = R 1 + R 2 = 50 Ω + 50 Ω = 100 Ω.
Resistors i le parallel:
1/R = 1/R 1 + 1/R 2 = 1/50 + 1/50 Ω = 2/50
R = 50/2 = 25 Ω
(b) Resistors i le faasologa:
I = V / R = 12 Volts / 100 Ω = 0.12 A
Resistors i le parallel:
I = V / R = 12 Volts / 25 Ω = 0.48 A
O lenei taunuuga e faʻaalia ai o le aofaʻi o le tafe eletise o loʻo tafe i le matagaluega tutusa e tele atu, ae o le aofaʻi o le tafe eletise o loʻo tafe i le faasologa e laʻititi ifo.
