Isibonelo somthetho wokuqala kaKirchhoff

Izibonelo eziyi-11 zoMthetho Wokuqala kaKirchhoff

1. Bheka isithombe esilandelayo!

Uma mina₁ = 5A, I₂ = 3 A, I₃ = 6 A, Okukhulu I₄ kuyinto…

A. 2A

B. 8A

C. 9A

D. 14A

Ingxoxo

Umthetho Wokuqala kaKirchhoff uthi inani lamandla kagesi angena endaweni yegatsha lilingana nenani lamandla kagesi aphuma endaweni yegatsha.

Naka umcibisholo osesithombeni! Ugesi ongena endaweni yegatsha u-I₁ dan I₂ kanti ugesi ophuma endaweni yegatsha u-I₃ nami₄.

Sebenzisa umthetho wokuqala kaKirchhoff:

I₁ + Mina₂ = Mina₃ + Mina₄

5 + 3 = 6 + I₄

8 = 6 + I₄

I₄ = 8 - 6

I₄ = ama-ampere ama-2

Impendulo efanele ngu-A.

2. Bheka isithombe esilandelayo!

Uma ngimkhulu₁ = Mina₃ bese kuba yi-I enkulu₄ kuyinto…

A. 11 A

B. 7 A

C. 6 A

D. 3 A

Ingxoxo

Kuyaziwa ukuthi:

I₁ = Mina₃ = Ama-Ampere ama-2

I₂ = Ama-Ampere ama-3

I₅ = Ama-Ampere ama-4

Kubuziwe: I₄

Impendulo:

Umthetho Wokuqala kaKirchhoff uthi inani lamandla kagesi angena endaweni yegatsha lilingana nenani lamandla kagesi aphuma endaweni yegatsha.

Naka umcibisholo osesithombeni! Ugesi ongena endaweni yegatsha u-I₁ dan I₄ kanti ugesi ophuma endaweni yegatsha u-I_2, I₃ nami₅.

Sebenzisa umthetho wokuqala kaKirchhoff:

I₁ + Mina₄ = Mina₂ + Mina₃ + Mina₅

2 + I₄ = 3 + 2 + 4

2 + I₄ = 9

I₄ = 9 - 2

I₄ = Ama-Ampere ama-7

Impendulo efanele ingu-B.

3. Bheka uchungechunge lwezithombe ezilandelayo!

Izilinganiso ezihambisana nemithetho kaKirchoff

A. Mina₁ = Mina₂ + Mina₃ = Mina₆ = Mina₄ + Mina₅

B. I₁ = Mina₂ + Mina₃ + Mina₆ + Mina₄ + Mina₅

LAPHO₆ = Mina₁ + Mina₂ + Mina₃ + Mina₄ + Mina₅

D. I₁ = Mina₆ + Mina₂ + Mina₃ + Mina₄ + Mina₅

Ingxoxo

Isithombe esingezansi: I = uphawu lwamandla kagesi.

Umthetho Wokuqala kaKirchhoff uthi inani lamandla kagesi angena endaweni yegatsha = inani lamandla kagesi aphuma endaweni yegatsha.

Ngokusekelwe emthethweni wokuqala kaKirchhoff, kuphethwa ngokuthi mina₁ = Mina₂ + Mina₃ = Mina₄ + Mina₅ = Mina₆.

Impendulo efanele ngu-A.

4. Bheka isithombe! I-Big I₁ kuyinto…

A. 2 Ama-Ampere

B. 3 Ampere

Ama-Ampere angu-C. 4

D. 5 Ampere

Ingxoxo

Umthetho Wokuqala kaKirchhoff uthi ugesi ongena endaweni yegatsha ufana nogesi ophuma endaweni yegatsha. Ngokusekelwe esithombeni esingenhla, ugesi ongena endaweni yegatsha u-I = 7 Amperes, kanti ugesi ophuma endaweni yegatsha u-I = 7 Amperes.₁, Mina₂ = Ama-Ampere ama-1 nami₃ = Ama-Ampere ama-3.

Ngokwezibalo:

Mina = Mina₁ + I₂ + I₃

7 A = Mina₁ + 1 A + 4 A

7 A = Mina₁ + 5 A

7 A – 5 A = I₁

I₁ = Ama-Ampere ama-2

Impendulo efanele ngu-A.

5. Naka ugesi olandelayo!

Usayizi we-I₁ kuyinto…

A. 2 A

B. 3 A

C. 4 A

D. 5 A

Ingxoxo

Kuyaziwa ukuthi:

Ugesi ongena endaweni yegatsha:

I = 7 Ampere

Amandla kagesi aphuma endaweni yegatsha:

I₂ = 2 Ampere kanye no-I₃ = Ama-Ampere ama-1

Kubuziwe: I₁

Impendulo:

Umthetho Wokuqala kaKirchhoff uthi ugesi ongena endaweni yegatsha ufana nogesi ophuma endaweni yegatsha. Ngokwezibalo:

Ngingena = ngiphumile

Ama-Ampere angu-7 = I₁ + 2 Ampere + 1 Ampere

Ama-Ampere angu-7 = I₁ + 3 Amandla

I₁ = Ama-Ampere angu-7 – Ama-Ampere angu-3

I₁ = Ama-Ampere ama-4

Impendulo efanele ngu-C.

6. Ngingaki mina₂, ochungechungeni olungezansi!

A. 1 A

B. 2 A

C. 3 A

D. 4 A

Ingxoxo

Kuyaziwa ukuthi:

Amandla kagesi angena endaweni yegatsha:

I₁ = Ama-Ampere ama-6

Ugesi ophuma endaweni yegatsha:

I₃ = Ama-Ampere ama-3

I₄ = Ama-Ampere ama-1

Kubuziwe: I₂

Impendulo:

Umthetho Wokuqala kaKirchhoff uthi ugesi ongena endaweni yegatsha ufana nogesi ophuma endaweni yegatsha.

I₁ = Mina₂ + Mina₃ + Mina₄

6 = ngi₂ + 3 + 1

6 = ngi₂ 4 +

I₂ = 6 - 4

I₂ = Ama-Ampere ama-2

Impendulo efanele ingu-B.

7. Bheka umdwebo wesekethe kagesi olandelayo! Uma ngi₂ = 1/4 I₁ , ngabe sengiya₃ likhulu njenge…

A. 150 mA

B. 300 mA

C. 450 mA

D. 600 mA

Ingxoxo

Kuyaziwa ukuthi:

I₁ = Ama-Ampere angu-600 milli

Kubuziwe: I₃

Impendulo:

I₂ = 1/4 I₁ = 1/4 (600 mA) = 150 mA

Umthetho Wokuqala kaKirchhoff uthi ugesi ongena endaweni yegatsha ufana nogesi ophuma endaweni yegatsha. Ugesi ongena endaweni yegatsha u-I₁, ugesi ophuma endaweni yegatsha ngu-I₂ nami₃Ngokwezibalo:

I₁ = Mina₂ + Mina₃

600 mA = 150 mA + I₃

I₃ = 600 mA – 150 mA

I₃ = 450 mA

Impendulo efanele ngu-C.

8.

Bheka isithombe esilandelayo sokuqhekeka kwamandla kagesi. Ubukhulu be-I₄ kuyinto….

A. 14 A
B. 8 A
C. 6 A
D. 4 A

Ingxoxo

Kuyaziwa ukuthi:
I₁ = Ama-Ampere ama-6
I₂ = Ama-Ampere ama-13
I₃ = Ama-Ampere ama-8
I₅ = Ama-Ampere ama-5
Kubuziwe: Mina₄ = …. ?
Impendulo:

Umthetho Wokuqala KaKirchhoff:
Inani lamandla kagesi angena endaweni yegatsha = inani lamandla kagesi aphuma endaweni yegatsha.

Nakani imicibisholo esesithombeni!
Ugesi ongena endaweni yegatsha ngu-I₁, Mina₃, Mina₄ futhi ugesi ophuma endaweni yegatsha ngu-I₂ nami₅.

Sebenzisa umthetho wokuqala kaKirchhoff:
I₁ + Mina₃ + Mina₄ = Mina₂ + Mina₅
6 A + 8 A + I₄ = 13 A + 5 A
14 A + I₄ =18 A
I₄ = 18 A – 14 A
I₄ = Ama-Ampere ama-4

Impendulo efanele ngu-D.

9. Bheka umdwebo wesekethe kagesi olandelayo!
Uma mina = 6 A, mina₁ = 1 A, I₃ = 2A kanye no-I₄ = 1 A. Amandla amanje I₅ kuyinto….

A. 0,5 A
B. 0,6 A
C. 1,0 A
D. 2,0 A

Ingxoxo
Kuyaziwa ukuthi:
I = 6 Ampere
I₁ = Ama-Ampere ama-1
I₃ = Ama-Ampere ama-2
I₄ = Ama-Ampere ama-1
Kubuziwe: Mina₅ = …. ?
Impendulo:
Umthetho Wokuqala KaKirchhoff:
Inani lamandla kagesi angena ephuzwini legatsha 1 = inani lamandla kagesi aphuma ephuzwini legatsha 1.

Nakani imicibisholo esesithombeni!
Ugesi ongena ephuzwini legatsha 1 ngu-I kanti ugesi ophuma ephuzwini legatsha 1 ngu-I₁, Mina₂ nami₃Sebenzisa umthetho wokuqala kaKirchhoff endaweni yegatsha 1:
Mina = Mina₁ + Mina₂ + Mina₃
6 A = 1 A + I₂ + 2 A
6 A = 3 A + I₂
6 A – 3 A = I₂
3 A = Mina₂

Nakani imicibisholo esesithombeni!
Ugesi ongena endaweni yegatsha 2 u-I₂ futhi ugesi ophuma endaweni yegatsha 2 ngu-I₄ nami₅Sebenzisa umthetho wokuqala kaKirchhoff endaweni yegatsha 2:
I₂ = Mina₄ + Mina₅
3 A = 1 A + I₅
3 A – 1 A = I₅
I₅ = Ama-Ampere ama-2
Impendulo efanele ngu-D.

10. Bheka isithombe samaphuzu okuxhuma kagesi kumjikelezo olandelayo!
I-current I egeleza ingu….
A. 3 A
B. 7 A
C. 13 A
D. 17 A
Ingxoxo
Nakani imicibisholo esesithombeni!
Ugesi ongena endaweni yegatsha ungama-Ampere ama-5, ama-Ampere ama-3 kanye nama-Ampere ama-2, kanti ugesi ophuma endaweni yegatsha ungama-Ampere ama-I kanye nama-Ampere ama-7.

Sebenzisa umthetho wokuqala kaKirchhoff:
5 A + 3 A + 2 A = I + 7 A
10 A = I + 7 A
I = 10 A – 7 A
I = 3 Ampere
Impendulo efanele ngu-A.

11. Naka uchungechunge olulandelayo!

Uma kusekhethini enkulu kagesi amandla amanje angu-I₁ = 4 A, I₂ = 3 A, I₄ = 7 A, I₅ = 4 A, ubukhulu bomsinga kagesi ku-I₃ kuyinto…

A. 3 A

B. 4 A

C. 7 A

D. 10 A

Ingxoxo

Umthetho Wokuqala kaKirchhoff uthi ugesi ongena endaweni yegatsha ufana nogesi ophuma endaweni yegatsha.

Ugesi ongena endaweni yegatsha = I₁ + Mina₃ = 4 A + I₃

Ugesi ophuma endaweni yegatsha = I₂ + Mina₄ + Mina₅ = 3 A + 7 A + 4 A = 14 A

14 A = 4 A + I₃

I₃ = 14 A – 4 A

I₃ =10 A

Impendulo efanele ngu-D.

Umthombo wombuzo:

Imibuzo Yokuhlolwa Kazwelonke Yesayensi Yesikole Samabanga Aphansi/Isikole SamaSulumane Samabanga Aphakeme