Mohlala oa lipotso tsa potoloho ea motlakase

Mehlala e 15 ea Mathata a Potoloho ea Motlakase

1. Sheba setšoantšo!

Haeba R₁, = 6 Ω, R₂ =R₃ = 2 Ω, le phapang e ka bang teng ea li-volt tse 14, joale boholo ba phallo ea motlakase ke…

A. 7 A

B. 6 A

C. 2 A

D. 1 A

Puisano

Hoa tsebahala hore:

Mohanyetsi 1 (R)₁) = 6 Ω

Mohanyetsi 2 (R)₂) = 2 Ω

Mohanyetsi 3 (R)₃) = 2 Ω

Phapang e ka bang teng (V) = 14 Volts

E botsitsoe : Matla a phallo ea metsi

Karabo:

Bala resistor e nkelang sebaka (R):

R₂ le R₃ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R₂₃ = 1/R₂ +1/R₃ = 1/2 + 1/2 = 2/2

R₂₃ = 2/2 = 1 Ω

R₁ le R₂₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂₃ = 6 Ω + 1 Ω

R = 7Ω

Bala matla a hona joale (I):

Ke = V / R = 14 / 7 = 2 Ampere

Karabo e nepahetseng ke C.

2. Haeba resistor ka 'ngoe e na le boleng bo tšoanang 'me e kentsoe ka phapang e tšoanang ea bokhoni, joale potoloho e nang le boleng bo boholo ba hona joale ke...

Puisano

A re re boleng ba resistor ka 'ngoe ke R 'me phapang e ka bang teng ke V.

Karabo e nepahetseng ke B.

3. Sheba setšoantšo!

Ha switjha S₂ e hokahantswe, ebe tataiso e nepahetseng ya motlakase e bontshwa ntlheng...

A. A – B – E – F

B. B – C – D – F

C. A – C – D – F

D. F – E – B – A

Puisano

Motlakase o tsamaya ho tloha ntlheng e nang le bokgoni bo phahameng ho ya ntlheng e nang le bokgoni bo tlase. Haeba switch s2 e kwetswe (switch s2 e haufi le ntlha A), jwale motlakase o tsamaya ho tloha ho A ho ya ho B ho ya ho E ho ya ho F. Motlakase ha o tsamaye ho ya ho C le D hobane C le D di potolohong e bulehileng.

Karabo e nepahetseng ke A.

4. Sheba setšoantšo se latelang!

Haeba R₁ = 4 ohms, R₂ = 6 ohms, R₃ = 2 ohms, le V = 24 volts, joale boholo ba phallo ea motlakase ke letotong lena ke...

A. 0,5 ampere

B. 1 ampere

C. 2 ampere

D. 12 ampere

Puisano

Hoa tsebahala hore:

Mohanyetsi 1 (R)₁) = 4 Ohms

Mohanyetsi 2 (R)₂) = 6 Ohms

Mohanyetsi 3 (R)₃) = 2 Ohms

Motlakase oa motlakase (V) = Li-volt tse 24

O botsitse: Matla a phallo ea motlakase potolohong

Karabo:

R₁, R₂ le R₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂ + R₃ = 4 + 6 + 2

R = 12 Ohm

Motlakase o phallang potolohong:

Ke = V / R = 24 / 12 = 2 Ampere

Karabo e nepahetseng ke C.

5. Sheba setšoantšo! Lebone leo motlakase oa lona o tšoanang le motlakase o fetang mohloling oa emf ke...

A. L₁

B. L₂

C.L₃

D.L₄

Puisano

Molao oa Pele oa Kirchhoff o bolela hore motlakase o fetang lekaleng o tla arohana. Mohlala, haeba motlakase o phallang ho tsoa mohloling oa emf e le 4 Amperes, ha o kena makaleng a mabeli, motlakase ona o arotsoe ka bobeli, terata ka 'ngoe e jere motlakase oa 2 Amperes. Motlakase oa 2 Amperes o arotsoe ka bobeli haeba motlakase o kena lekaleng le nang le makala a mabeli. Leha ho le joalo, ho ea ka setšoantšo se kaholimo, motlakase o arotsoeng qetellong o kopana hape.

Kahoo ho latela setšoantšo se kaholimo, lebone leo motlakase oa lona o tšoanang le motlakase o fetang mohloling oa emf ke lebone le lebeli (L).₂) e fumanehang haufi le sekhutlo se ka hodimo ho le letona.

Karabo e nepahetseng ke B.

6. Ho tsoa setšoantšong se latelang sa potoloho, ke sefe se tla tsamaisa motlakase o moholo ka ho fetisisa?

Puisano

Motlakase o potolohang potolohong ea A.

Sehanyetsi se nkelang sebaka (R):

R₁ = 3 Ω, R₂ = 4 Ω, R₃ = 4 Ω, V = 12 Volt

R₂ le R₃ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R₂₃ = 1/R₂ +1/R₃ = 1/4 + 1/4 = 2/4 = 1/2

R₂₃ = 2/1 = 2 Ω

R₁ le R₂₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂₃ = 3 Ω + 2 Ω = 5 Ω

Matla a motlakase (I):

Ke = V / R = 12 / 5 = 2,4 Ampere

Motlakase o potolohang potolohong ea B.

Sehanyetsi se nkelang sebaka (R):

R₁ = 8 Ω, R₂ = 2 Ω, R₃ = 2 Ω, V = 36 Volt

R₁, R₂ le R₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂ + R₃ 8 + 2 + 2 = 12 Ω

Matla a motlakase (I):

Ke = V / R = 36 / 12 = 3 Ampere

Motlakase o potolohang potolohong ea C.

Sehanyetsi se nkelang sebaka (R):

R₁ = 4 Ω, R₂ = 4 Ω, R₃ = 6 Ω, V = 12 Volt

R₂ le R₃ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R₂₃ = 1/R₂ +1/R₃ = 1/4 + 1/4 + 1/6 = 3/12 + 3/12 + 2/12 = 8/12

R₂₃ = 12/8 = 1,5 Ω

Matla a motlakase (I):

Ke = V / R = 12 / 1,5 = 8 Ampere

Motlakase o potolohang potolohong ea D.

Sehanyetsi se nkelang sebaka (R):

R₁ = 3 Ω, R₂ = 3 Ω, R₃ = 3 Ω, R₄ = 3 Ω, R₅ = 6 Ω, V = 24 Volt

R₂, R₃ le R₄ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R₂₃₄ = 1/R₂ +1/R₃ +1/R₄ = 1/3 + 1/3 + 1/3 = 3/3

R₂₃₄ = 3/3 = 1 Ω

R₁, R₂₃₄ le R₅ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂₃₄ + R₅ 3 + 1 + 6 = 9 Ω

Matla a motlakase (I):

Ke = V / R = 24 / 9 = 2,6 Ampere

Karabo e nepahetseng ke C.

7. Ela hloko letoto le latelang!

Etsa qeto:

A. Khanyetso e felletseng

B. Boholo ba motlakase potolohong

C. Hona joale I₁

D. Hona joale I₂

Puisano

Hoa tsebahala hore:

Mohanyetsi 1 (R)₁= 4 Ω

Mohanyetsi 2 (R)₂) = 4 Ω

Mohanyetsi 3 (R)₃) = 2 Ω

Mohanyetsi 4 (R)₄) = 3 Ω

Motlakase oa motlakase (V) = Li-volt tse 12

Karabo:

A. Khanyetso e felletseng (R)

Mohanyetsi R₂ le mohanyetsi R₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R₂₃ =R₂ + R₃ = 4 Ω + 2 Ω = 6 Ω

Mohanyetsi R₂₃ le li-resistor R₄ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R₂₃₄ = 1 /R₂₃ + 1/R₄ = 1/6 + 1/3 = 1/6 + 2/6 = 3/6

R₂₃₄ = 6/3 = 2 Ω

Mohanyetsi R₁ le li-resistor R₂₃₄ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:

R = R₁ + R₂₃₄ = 4 Ω + 2 Ω = 6 Ω

Kahoo khanyetso eohle ke 6 Ohms.

B. Boholo ba motlakase o potolohang potolohong (I)

Foromo e bolelang kamano pakeng tsa motlakase, hona joale le khanyetso ke:

V = IR

Tlhaloso ea foromo: V = Motlakase oa motlakase, I = motlakase oa motlakase, R = khanyetso ea motlakase

Sebelisa foromo ena ho bala matla a motlakase:

I = V / R = 12 Volts / 6 Ohms = 2 Amps

C. Hona joale I₁

Motlakase o fetang ka har'a resistor R₁ = motlakase o fetang ka hara potoloho = 2 Ampere.

D. Hona joale I₂

Pele o bala motlakase o fetang ka har'a resistor R₂, pele ela hloko tlhaloso e latelang.

Mohanyetsi R₂₃ le li-resistor R₄ e hokahantsoe ka ho bapa. Sehanyetsi se nkelang sebaka se ipapisitseng le diphetho tsa dipalo tse fetileng ke R₂₃₄ = 2 Ahm.

Motlakase o fetang ka har'a resistor R₂₃₄ = motlakase o fetang ka har'a resistor R₁ = Li-ampere tse 2.

Phapang e ka bang teng pakeng tsa lipheletso tse peli tsa resistor R₂₃₄ ke:

V = IR₂₃₄ = (2 A)(2 Ohm) = Li-volt tse 4

Phapang e ka bang teng pakeng tsa lipheletso tse peli tsa resistor R₂₃₄ = phapang e ka bang teng pakeng tsa lipheletso tse peli tsa resistor R₄ = phapang e ka bang teng pakeng tsa lipheletso tse peli tsa resistor R₂₃ = Li-volt tse 4.

Mohanyetsi oa ho nkela sebaka R₂₃ ho latela liphetho tsa lipalo tse fetileng ke 6 Ohm.

Kahoo motlakase o fetang ka har'a resistor e nkeloang sebaka R₂₃ ke:

I = V / R = 4 Volts / 6 Ohms = 2/3 Ampere

Motlakase o fetang ka har'a resistor R₂₃ = motlakase o fetang ka har'a resistor R₂ = motlakase o fetang ka har'a resistor R₃ = 2/3 Ampere.

8. Sheba potoloho ea motlakase ka lehlakoreng! Haeba R₁ =R₂ = 10 Ω le R₃ =R₄ = 8 Ω. Motlakase (I) o phalla o moholo hakae?

A. 0,5 A

B. 2 A

C. 36 A

D. 288 A

Puisano

Hoa tsebahala hore:

Mohanyetsi R₁ = Mohanyetsi R₂ = 10 Ω

Mohanyetsi R₃ = Mohanyetsi R₄ = 8 Ω

Motlakase oa motlakase (V) = Li-volt tse 12

O botsitse: Matla a motlakase (I) o phallang

Karabo:

Sehanyetsi se nkelang sebaka (R).

Mohanyetsi R₃ le mohanyetsi R₄ e hokahantswe ka ho bapa, resistor e nkelang sebaka ke:

1 / R₃₄ = 1/R₃ +1/R₄ = 1/8 + 1/8 = 2/8

R₃₄ = 8/2 = 4 Ω

Mohanyetsi R₁, R₂ le R₃₄ e hokahaneng ka letoto, resistor e nkelang sebaka ke:

R = R₁ + R₂ + R₃₄ = 10 Ω + 10 Ω + 4 Ω = 24 Ω

Matla a motlakase:

I = V / R = 12 Volts / 24 Ohms = 0,5 Volts/Ohms = 0,5 Amps

Karabo e nepahetseng ke A.

9. Sheba setšoantšo sa potoloho ea motlakase e koetsoeng ka lehlakoreng! Haeba khanyetso e ka har'a betri e hlokomolohuoa, joale motlakase (I) o phallang potolohong ke…..

A. 0,5 Li-ampere

B. 1 Ampere

C. 2 Ampere

D. 3 Ampere

Puisano

Hoa tsebahala hore:

Mohanyetsi R₁ = 3 Ohm

Mohanyetsi R₂ = 3 Ohm

Mohanyetsi R₃ = 6 Ohm

Motlakase oa motlakase (V) = Li-volt tse 6

O botsitse: Motlakase (I)

Karabo:

Bala resistor e nkelang sebaka:

Mohanyetsi R₁ le R₂ e hlophisitsoe ka tatellano. Resistor e nkelang sebaka ke:

R₁₂ =R₁ + R₂ = 3 Ohms + 3 Ohms = 6 Ohms

Resistor R12 le resistor 3 li hokahane ka ho lekana. Resistor e nkelang sebaka ke:

1/R = 1/R₁₂ +1/R₃ = 1/6 + 1/6 = 2/6

R = 6/2 = 3 Ohms

Matla a motlakase:

Ke = V / R = 6 / 3 = 2 Ampere

Karabo e nepahetseng ke C.

10. Sheba setšoantšo sa potoloho e koetsoeng ka tlase! Kakaretso ea motlakase potolohong ke...

A. 0,5 A

B. 0,6 A

C. 1,2 A

D. 2,0 A

Puisano

Hoa tsebahala hore:

Mohanyetsi R₁ = 6 Ohm

Mohanyetsi R₂ = 4 Ohm

Motlakase oa motlakase (V) = Li-volt tse 6

Khanyetso ea ka hare (r) = 0,6 Ohm

O botsitse: Kakaretso ea motlakase potolohong

Karabo:

Mohanyetsi R₁ le mohanyetsi R₂ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:

1 / R_P = 1/R1 + 1/R2 = 1/6 + 1/4 = 4/24 + 6/24 = 10/24

R_P = 24/10 = 2,4 Ohms

Mohanyetsi R_P 'me khanyetso ea ka hare (r) e hokahane ka tatellano. Khanyetso e lekanang ke:

R = R_P + r = 2,4 Ohms + 0,6 Ohms = 3,0 Ohms

Kakaretso ea motlakase potolohong ke:

I = V / R = 6 Volts / 3 Ohms = 2 Amps

Karabo e nepahetseng ke D.

11.

Sheba potoloho ea motlakase ka lehlakoreng! Boholo ba motlakase oa V ke…

A. 9,6 Volt
B. 6,4 Volt
C. 4,5 Volt
D. 3,2 Volt

Puisano

Hoa tsebahala hore:
Mohanyetsi 1 (R)₁) = 16 Ohms
Mohanyetsi 2 (R)₂) = 8 Ohms
Mohanyetsi 3 (R)₃) = 6 Ohms
Motlakase oa motlakase (I) = 2 Ampere
Potso: Motlakase oa motlakase (V)
Karabo:
Sehanyetsi se nkeloang sebaka
R₁ le R₂ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:
R_A =R₁ + R₂ = 16 + 8 = 24 Ohms
R_A le R₃ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:
1/R = 1/R_A +1/R₃ = 1/24 + 1/6
1/R = 1/24 + 4/24 = 5/24
R = 24/5 = 4,8 Ohms
Motlakase oa motlakase :
V = IR = (2)(4,8) = 9,6 Volt
Karabo e nepahetseng ke A.

12. Sheba setshwantsho sa potoloho ya motlakase ka lehlakoreng! Haeba khanyetso mohloding wa motlakase e hlokomolohuwa, voltmeter V e bontsha voltage e lekantsweng ya...

A. 4 V
B. 6 V
C. 9 V
D. 10 V

Puisano

Hoa tsebahala hore:
Mohanyetsi 1 (R)₁) = 3,6 Ohms
Mohanyetsi 2 (R)₂) = 6 Ohms
Mohanyetsi 3 (R)₃) = 4 Ohms
Motlakase oa motlakase (I) = 1,5 Ampere
Potso: Motlakase oa motlakase (V)
Karabo:
Sehanyetsi se nkeloang sebaka
R₂ le R₃ e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:
1 / R_A = 1/R₂ +1/R₃ = 1/6 + 1/4
1 / R_A = 2/12 + 3/12 = 5/12
R_A = 12/5 = 2,4 Ohms
R₁ le R_A e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:
R = R₁ + R_A = 3,6 + 2,4 = 6 Ohms
Motlakase oa motlakase :
V = IR = (1,5)(6) = 9 Volt
Karabo e nepahetseng ke C.

13.
Sheba setshwantsho se latelang sa potoloho ya motlakase e kwetsweng! Haeba khanyetso mohloding wa motlakase E e hlokomolohuwa, voltmeter V e bontsha voltage e lekantsweng ya...
A. 2 V
B. 4 V
C. 6 V
D. 12 V
Puisano
Hoa tsebahala hore:
Mohanyetsi 1 (R)₁) = 3 Ohms
Mohanyetsi 2 (R)₂) = 2 Ohms
Mohanyetsi 3 (R)₃) = 4 Ohms
Motlakase oa motlakase (I) = 2 Ampere
Potso: Motlakase oa motlakase (V)
Karabo:
Sehanyetsi se nkeloang sebaka
R₂ le R₃ e hokahantsoe ka letoto. Resistor e nkelang sebaka ke:
R_A =R₂ + R₃ = 2 + 4 = 6 Ohms
R₁ le R_A e hokahantsoe ka ho bapa. Resistor e nkelang sebaka ke:
1/R = 1/R₁ +1/R_A = 1/3 + 1/6
1/R = 2/6 + 1/6 = 3/6
R = 6/3 = 2 Ohms
Motlakase oa motlakase :
V = IR = (2)(2) = 4 Volt
Karabo e nepahetseng ke B.

14. Setšoantšong se latelang sa potoloho ea motlakase, A, B, C, D le E ke mabone a tšoanang a incandescent.

Haeba lebone B le tlositsoe, lebone le bonesang le khanya haholoanyane le...

A. mabone A le C

B. mabone A le D

C. mabone C le D

D. mabone C le E

Mabone a E. D le E

Puisano

Mabone a mahlano a tšoanang a incandescent a bolela hore lebone ka leng le na le khanyetso e tšoanang.

Hobane khanyetso e tšoana, khanya ea lebone e itšetlehile feela ka matla a motlakase o phallang ka har'a lebone.

Ho ya ka molao wa pele wa Kirchhoff, motlakase o fetang mabone a D le E o tshwana hobane a hokahantswe ka tatellano, ha motlakase o fetang potolohong e bapileng o tla arolwa.

Haeba lebone la B le tloswa, mabone a tukang a benyang haholo ke mabone a D le a E, moo mabone ka bobedi a nang le lelakabe le le leng le khanyang.

Karabo e nepahetseng ke E.

15. Sheba setshwantsho se latelang sa potoloho ya motlakase!

Haeba mohlodi wa motlakase o na le phapang e ka bang teng ya di-volt tse 24, motlakase ntlheng ya lekala la I ke…

A. 1,2 A

B. 2,0 A

C. 2,4 A

D. 3,0 A

Puisano

Hoa tsebahala hore:

Mohloli oa EMF (E) = 24 Volts

Khanyetso ea ka hare (r) = 2 Ohm

Li-resistor tsa 40 Ohm, 20 Ohm le 20 Ohm.

O botsitse: Matla a hona joale ntlheng ea lekala la I

Karabo:

Li-resistor tse tharo li hokahane ka nako e le 'ngoe, li-resistor tse nkeloang sebaka ke:

1/R = 1/40 + 1/20 + 1/20

1/R = 1/40 + 2/40 + 2/40

1/R = 5/40

R = 40/5

R = 8 Ohm

Motlakase oa ho tlama:

V = E – I r

V = 24 – I 2

Matla a hona joale ntlheng ea lekala la I:

V = IR

24 – Ke 2 = Ke 8

24 = Ke 8 + Ke 2

24 = Ke (10)

Ke = 24/10

I = 2,4 Ampere

Karabo e nepahetseng ke C.

Mohloli oa lipotso:

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