Mohlala oa mathata a ho hanyetsa ka tsela e tšoanang

Mehlala e 4 ea Mathata a Resistor a Parallel

Hape ithute boitsebiso bo mabapi le li-resistor tse bapileng le mehlala ea mathata a li-resistor tsa letoto , mehlala ea mathata a ho hanyetsa motlakase.

1. Kaha R ₁ = 2 Ω le R ₂ = 4 Ω li hokahane ka ho lekana. Boleng ba resistor e nkelang sebaka ke bofe? (Ω = Ohm).

Puisano

1/R = 1/R ₁ + 1/R ₂ = 1/2 + 1/4 = 2/4 + 1/4 = 3/4

R = 4/3 Ω

Boleng ba khanyetso e nkelang sebaka bo boholo ho feta boleng ba khanyetso ka 'ngoe e hokahantsoeng ka letoto.

2.R₁ = 1 Ω, R₂ = 2 Ω, R₃ = 3 Ω. Boleng ba resistor e nkelang sebaka ke…..

Puisano

1/R = 1/R ₁ + 1/R ₂ + 1/R ₃ = 1/1 + 1/2 + 1/3 = 6/6 + 3/6 + 2/6 = 11/6

R = 6/11 Ω.

3. R _{​​​​1} = 4 Ω, R ₂ = 2 Ω, V = 12 Volts. Fumana (a) boleng ba resistor e nkelang sebaka (b) motlakase o phallang potolohong (c) motlakase o fetang har'a resistor R ₁ le R ₂

Puisano

(a) Sehanyetsi se nkelang sebaka

1/R = 1/R ₁ + 1/R ₂ = 1/4 + 1/2 = 1/4 + 2/4 = 3/4

R = 4/3 Ω.

(b) Motlakase o potolohang potolohong

I = V / R = 12 : 4/3 = 12 x 3/4 = 9 Ampere

(c) Motlakase o fetang ka har'a li-resistor R ₁ le R ₂

Phapang e ka bang teng lipheletsong ka bobeli tsa R ₁ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₂ = 12 Volts.

I ₁ = V / R ₁ = 12 / 4 = 3 Ampere

I ₂ = V / R ₂ = 12 / 2 = 6 Ampere

Sephetho sena se dumellana le molao wa pele wa Kirchhoff :

Ke = Ke ₁ + Ke ₂

9 A = 3 A + 6 A

4. R₁ = 2 Ω, R₂ = 4 Ω, R₃ = 6 Ω, R₄ = 8 Ω, V = 12 Volts. Fumana (a) Boleng ba resistor e nkelang sebaka (b) Motlakase o phallang potolohong (c) Motlakase o phallang ka resistor R₂ (d) Motlakase oa motlakase lipheletsong ka bobeli tsa resistor R₄.

Puisano

(a) Sehanyetsi se nkelang sebaka

1/R = 1/R ₁ + 1/ R ₂ + 1/R ₃ + 1/R ₄ = 1/2 + 1/4 + 1/6 + 1/8 = 12/24 + 6/24 + 4/24 + 3/24 = 25/24

R = 24/25 Ω

(b) Motlakase o fetang ka hara potoloho

I = V / R = 12 : 24/25 = 12 x 25/24 = 1 x 25/2 = 12,5 A ampere

(c) Motlakase o fetang ka har'a resistor R_1, R₂, R₃, R₄

Phapang e ka bang teng lipheletsong ka bobeli tsa R ₁ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₂ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₃ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₄ = 12 Volts.

I ₁ = V / R ₁ = 12 / 2 = 6 Ampere

I ₂ = V / R ₂ = 12 / 4 = 3 Ampere

I ₃ = V / R ₃ = 12 / 6 = 2 Ampere

I ₄ = V / R ₄ = 12 / 8 = 1,5 Ampere

Sephetho sena se dumellana le molao wa pele wa Kirchhoff:

Ke = Ke ₁ + Ke ₂

12,5 A = 6 A + 3 A + 2 A + 1,5 A

(D)

Phapang e ka bang teng lipheletsong ka bobeli tsa R ₁ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₂ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₃ = phapang e ka bang teng lipheletsong ka bobeli tsa R ₄ = 12 Volts.