1. Ngokusekelwe esithombeni esingezansi, thola ugesi ngokusebenzisa u- R1.
Kwaziwa:
Isithambisi 1 (R1 ) = 4 Ω
Isithambisi 2 (R2 ) = 4 Ω
Isithambisi 3 (R3 ) = 8 Ω
I-voltage kagesi (V) = 40 Volts
Okufunwayo: Ugesi odlula ku - R1
Isixazululo:
Ugesi ugeleza usuka kumandla aphezulu uye kumandla aphansi. Isiqondiso samandla kagesi kusekethe engenhla sifana nesiqondiso sewashi.
Ugesi ogeleza uphuma ebhethri
Okokuqala, bala ukumelana okulinganayo ( R). Ngemuva kwalokho, bala ugesi usebenzisa i-equation yomthetho ka-Ohm :
V = IR noma I = V / R
V = i-voltage , I = ugesi wamanje , R = ukumelana okulinganayo
Ukumelana okulinganayo:
I-Resistor R1 kanye ne -resistor R2 zixhunywe ngokulingana . Ukumelana okulinganayo:
1/R 12 = 1/R 1 + 1/R 2 = 1/4 + 1/4 = 2/4
R 12 = 4/2 = 2 Ω
I-Resistor R 12 kanye ne-resistor R 3 zixhunywe ngochungechunge . Ukumelana okulinganayo:
R = R 12 + R 3 = 2 + 8 = 10 Ω
Amandla kagesi aphuma ebhethrini:
I = V / R = 40 / 10 = 4 A
Amandla kagesi aphuma ebhethri angama- 4 Ampere.
I-voltage kagesi i- V ab ne- V bc
I-Kirchhoffumthetho wokuqala ka- uthi ku- Noma yiliphi iphuzu lokuhlangana, isamba sayo yonke imisinga engena esigxotsheni kumele ilingane nesamba sayo yonke imisinga ephuma esigxotsheni.
Ngokusekelwe emthethweni wokuqala kaKirchhoff , kuphethwa ngokuthi uma ugesi uphuma ebhethrini ungu-4 A khona-ke ugesi udlula ku-ab ulingana no-4 Ampere, ngakho-ke ugesi udlula ku-bc udlula ku-4 Ampere.
I-voltage kagesi V ab :
V ab = I ab R ab = (4)(2) = 8 Ama-volts
I-voltage kagesi V bc :
V bc = I bc R bc = (4)(8) = 32 Volts
Isekethe engenhla ixhunywe ngochungechunge ukuze i-voltage kagesi iyonke ibe yi -V = V ab + V bc = 8 Volts + 32 Volts = 40 Volts.
Ugesi ugeleza ku- R1 = 4 Ω
I 1 = V ab / R 1 = 8 Volts / 4 Ohms = 2 A
I 2 = V ab / R 2 = 8 Volts / 4 Ohms = 2 A
Ugesi ophuma ebhethrini u-4 A. Uma ufika endaweni eyodwa, ugesi uhlukaniswa kabili, ugesi we-2 Ampere ugeleza nge-resistor R1 bese
ugesi we-2 A ugeleza nge-resistor R 2 . 2 A + 2 A = 4 A.
2. Ngokusekelwe esithombeni esingezansi, thola ugesi ogeleza nge- resistor engu-4-Ω.
Kwaziwa:
Isithambisi 1 (R1 ) = 6 Ω
Isithambisi 2 (R2 ) = 4 Ω
Isithambisi 3 (R3 ) = 1.6 Ω
I-voltage kagesi (V) = 16 Volts
Okufunwayo: Ugesi ugeleza ku- 4 Ω
Isixazululo:
Ugesi ugeleza usuka kumandla aphezulu uye kumandla aphansi. Isiqondiso samandla kagesi kusekethe engenhla sifana nesiqondiso sewashi.
Ugesi ogeleza uphuma ebhethri
Ukumelana okulinganayo:
I-Resistor R1 kanye ne -resistor R2 zixhunywe ngokulingana. I-resistor efanayo:
1/R 12 = 1/R 1 + 1/R 2 = 1/6 + 1/4 = 2/12 + 3/12 = 5/12
R 12 = 12/5 = 2.4 Ω
I-Resistor R 12 kanye ne-resistor R 3 zixhunywe ngochungechunge. I-resistor efanayo:
R = R 12 + R 3 = 2.4 + 1.6 = 4 Ω
Amandla kagesi aphuma ebhethrini:
I = V / R = 16 / 4 = 4 A
I-voltage kagesi i-V ab ne - V bc
Ngokusekelwe emthethweni wokuqala kaKirchhoff, baphetha ngokuthi uma ugesi uphuma ebhethrini ungu-4 A khona-ke ugesi odlula ku-ab ulingana no-4 Ampere, ngakho-ke nogesi odlula ku-bc ungu-4 Ampere.
I-voltage kagesi V ab :
V ab = I ab R ab = (4)(2.4) = 9.6 Ama-volts
I-voltage kagesi V bc :
V bc = I bc R bc = (4)(1.6) = 6.4 Ama-volts
Isekethe engenhla ixhunywe ngochungechunge ukuze i-voltage kagesi iyonke ibe yi -V = V ab + V bc = 9.6 Volts + 6.4 Volts = 16 Volts.
Ugesi ogeleza ku- R2 = 4 Ω
I 1 = V ab / R 1 = 9.6 Volts / 6 Ohms = 1.6 A
I 2 = V ab / R 2 = 9.6 Volts / 4 Ohms = 2.4 A
Ugesi ophuma ebhethrini u-4 A. Uma ufika endaweni eyodwa, ugesi uhlukaniswa kabili,
ugesi ongu-1.6 A ugeleza nge-resistor R 1 kanti ugesi ongu-2.4 A ugeleza nge-resistor R 2. 1.6 A + 2.4 A = 4 A.
