He tauira o ngā pātai mō ngā ara iahiko hiko

15 Ngā Tauira o ngā Raru Arahiko Hiko

1. Tirohia te pikitia!

Mena ko R ₁ , = 6 Ω, ko R ₂ = R ₃ = 2 Ω, ā, ko te rerekētanga pūmanawa he 14 volts, ko te rahi o te iahiko e rere ana ko...

A. 7 A

B. 6 A

C. 2 A

D. 1 A

Kōrero

E mōhiotia ana:

Ātete 1 (R ₁ ) = 6 Ω

Ātete 2 (R ₂ ) = 2 Ω

Ātete 3 (R ₃ ) = 2 Ω

Rerekētanga pūmanawa (V) = 14 Volts

Pātai : E pēhea te kaha o te ia e rere ana?

Whakautu:

Tātaihia te ātete whakakapinga (R):

Kei te honoa whakarara a R2 me R3. Ko ngā _ātete whakakapinga ko _:

1/R ₂₃ = 1/R ₂ + 1/R ₃ = 1/2 + 1/2 = 2/2

R ₂₃ = 2/2 = 1 Ω

Kei te honoa raupapa a R ₁ me R _{23. Ko te ātete whakakapinga ko:}

_R = R1 ₊ R23 = 6 Ω + 1 Ω

R = 7 Ω

Tātaihia te kaha o te au (I):

I = V / R = 14 / 7 = 2 Āpere

Ko te whakautu tika ko C.

2. Mena he ōrite te uara o ia ātete, ā, he ōrite te rerekētanga pūmanawa kua tāutahia, ko te ara iahiko me te uara iahiko nui rawa atu ko...

Kōrero

Me kī ko te uara o ia ātete ko R, ā, ko te rerekētanga pūmanawa ko V.

Ko te whakautu tika ko B.

3. Tirohia te pikitia!

Ina honoa te pana S ₂ , ka tohua te ahunga tika o te iahiko e te pūwāhi...

A. A – B – E – F

P. P – C – D – F

C. A – C – D – F

D. F – E – B – A

Kōrero

Ka neke te au hiko mai i tētahi pūwāhi kaha teitei ki tētahi pūwāhi kaha iti. Mēnā ka kati te pana s2 (kei te taha o te pūwāhi A te pana s2), ka neke te au hiko mai i A ki B ki E ki F. Kāore te au hiko e neke ki C me D nā te mea kei roto a C me D i tētahi ara iahiko tuwhera.

Ko te whakautu tika ko A.

4. Tirohia te pikitia e whai ake nei!

Mena ko R ₁ = 4 ohms, ko R ₂ = 6 ohms, ko R ₃ = 2 ohms, ā, ko V = 24 volts, ko te nui o te iahiko e rere ana i roto i te ara iahiko ko...

A. 0,5 ampere

B. 1 ampere

C. 2 āpere

D. 12 āpere

Kōrero

E mōhiotia ana:

Ātete 1 (R ₁ ) = 4 Ohm

Ātete 2 (R ₂ ) = 6 Ohm

Ātete 3 (R ₃ ) = 2 Ohm

Ngaohiko hiko (V) = 24 Volts

I pātaihia: Te kaha o te ia e rere ana i roto i te ara iahiko

Whakautu:

Kua honoa raupapatia a R1, R2 me R3. _Ko ngā ātete _whakakapinga ko _:

_R = R1 ₊ R2 + R3 ₌ 4 + 6 + 2

R = 12 Ōhm

Te iahiko e rere ana i roto i te ara iahiko:

I = V / R = 24 / 12 = 2 Āpere

Ko te whakautu tika ko C.

5. Tirohia te pikitia! Ko te rama he rite te iahiko ki te iahiko e rere ana i roto i te pūtake emf ko...

A. L₁

B. L ₂

C. L ₃

D. L ₄

Kōrero

E ai ki te Ture Tuatahi a Kirchhoff, ka wehea te iahiko e rere ana i roto i tētahi peka. Hei tauira, mēnā ko te iahiko e rere ana mai i te pūtake emf he 4 Amperes, ina uru ki ngā peka e rua, ka wehea tēnei iahiko kia rua, ā, ko ia waea he iahiko e mau ana i te 2 Amperes. Ka wehea te iahiko 2 Amperes kia rua mēnā ka uru te iahiko ki tētahi peka he rua ōna peka. Heoi, e ai ki te ahua i runga ake nei, ka hanumi anō ngā iahiko kua wehea.

Nō reira, i runga i te ahua i runga ake nei, ko te rama he rite te iahiko ki te iahiko e rere ana i roto i te pūtake emf ko te rama tuarua (L2 ₎ kei te kokonga matau o runga.

Ko te whakautu tika ko B.

6. Mai i te hoahoa ara iahiko e whai ake nei, ko tēhea te mea ka kawe i te iahiko hiko nui rawa atu?

Kōrero

Te iahiko i roto i te ara iahiko A.

Ātete whakakapinga (R):

R1 = 3 Ω, R2 = 4 _Ω , R3 = 4 _Ω , V = 12 _Volts

Kei te honoa whakarara a R2 me R3. Ko ngā _ātete whakakapinga ko _:

1/R ₂₃ = 1/R ₂ + 1/R ₃ = 1/4 + 1/4 = 2/4 = 1/2

R ₂₃ = 2/1 = 2 Ω

Kei te honoa raupapa a R ₁ me R _{23. Ko te ātete whakakapinga ko:}

R = R ₁ + R ₂₃ = 3 Ω + 2 Ω = 5 Ω

Te kaha o te au hiko (I):

I = V / R = 12 / 5 = 2,4 Āpere

Te iahiko i roto i te ara iahiko B.

Ātete whakakapinga (R):

R1 = 8 Ω, R2 = 2 _Ω , R3 = 2 _Ω , V = 36 _Volts

Kua honoa raupapatia _a R1 , R2 _me R3 _{. Ko ngā ātete whakakapinga ko:}

R = R1 ₊ R2 + _{R3 =} 8 + 2 + 2 = 12 Ω

Te kaha o te au hiko (I):

I = V / R = 36 / 12 = 3 Āpere

Te iahiko i roto i te ara iahiko C.

Ātete whakakapinga (R):

R1 = 4 Ω, R2 = 4 _Ω , R3 = 6 _Ω , V = 12 _Volts

Kei te honoa whakarara a R2 me R3. Ko ngā _ātete whakakapinga ko _:

1/R ₂₃ = 1/R ₂ + 1/R ₃ = 1/4 + 1/4 + 1/6 = 3/12 + 3/12 + 2/12 = 8/12

R ₂₃ = 12/8 = 1,5 Ω

Te kaha o te au hiko (I):

I = V / R = 12 / 1,5 = 8 Āpere

Te iahiko hiko i roto i te ara iahiko D.

Ātete whakakapinga (R):

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

Kei te honoa whakarara a R2, R3 me R4. _Ko ngā ātete _whakakapinga ko _:

1/R ₂₃₄ = 1/R ₂ + 1/R ₃ + 1/R ₄ = 1/3 + 1/3 + 1/3 = 3/3

R ₂₃₄ = 3/3 = 1 Ω

Kua honoa raupapatia a R1, R234 me R5. _Ko ngā ātete _whakakapinga ko _:

_R = R1 ₊ R234 + R5 ₌ 3 + 1 + 6 = 9 Ω

Te kaha o te au hiko (I):

I = V / R = 24 / 9 = 2,6 Āpere

Ko te whakautu tika ko C.

7. Kia aro ki te raupapa e whai ake nei!

Whakatauhia:

A. Ātete katoa

B. Te rahi o te iahiko i roto i te ara iahiko

C. Iaianei I ₁

D. Ia au I ₂

Kōrero

E mōhiotia ana:

Ātete 1 (R ₁ ) = 4 Ω

Ātete 2 (R ₂ ) = 4 Ω

Ātete 3 (R ₃ ) = 2 Ω

Ātete 4 (R ₄ ) = 3 Ω

Ngaohiko hiko (V) = 12 Volts

Whakautu:

A. Ātete katoa (R)

_Ka honoa ngā ātete R2 _me R3 i roto i te raupapa. Ko ngā ātete whakakapinga ko:

R ₂₃ = R ₂ + R ₃ = 4 Ω + 2 Ω = 6 Ω

Kei te honoa whakarara te ātete R ₂₃ me te ātete R _{4. Ko te ātete whakakapinga ko:}

1/R ₂₃₄ = 1/ R ₂₃ + 1/ R ₄ = 1/6 + 1/3 = 1/6 + 2/6 = 3/6

R ₂₃₄ = 6/3 = 2 Ω

Kei te honoa raupapa te ātete R ₁ me te ātete R _{234. Ko te ātete whakakapinga ko:}

R = R ₁ + R ₂₃₄ = 4 Ω + 2 Ω = 6 Ω

Nō reira, ko te ātete katoa he 6 Ōhms.

B. Te rahi o te iahiko hiko i roto i te ara iahiko (I)

Ko te tātai e whakaatu ana i te whanaungatanga i waenga i te ngaohiko, te iahiko me te ātete ko:

V = IR

Whakaahuatanga tātai: V = ngaohiko hiko, I = iahiko hiko, R = ātete hiko

Whakamahia tēnei tātai hei tatau i te kaha o te iahiko:

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

C. Auaha I₁

Ko te iahiko e tika ana mā te ātete R ₁ = te iahiko e tika ana mā te ara iahiko = 2 Āmperes.

D. Auaha I₂

I mua i te tatau i te iahiko e haere ana i roto i te ātete R₂, kia aro tuatahi ki te whakamārama e whai ake nei.

Ka honoa ngā ātete R ₂₃ me R ₄ ki te taha whakarara. Ko te ātete whakakapinga i runga i te tātaitanga o mua ko R ₂₃₄ = 2 Ohm.

Ko te iahiko e tika ana mā te ātete R ₂₃₄ = ko te iahiko e tika ana mā te ātete R ₁ = 2 Amperes.

Ko te rerekētanga pūmanawa i waenga i ngā pito e rua o te ātete R₂₃₄ ko:

V = IR ₂₃₄ = (2 A)(2 Ohm ) = 4 Ngā Waehiko

Ko te rerekētanga pūmanawa i waenga i ngā pito e rua o te ātete R ₂₃₄ = te rerekētanga pūmanawa i waenga i ngā pito e rua o te ātete R ₄ = te rerekētanga pūmanawa i waenga i ngā pito e rua o te ātete R ₂₃ = 4 Volts.

Ko te ātete whakakapinga R ₂₃ i runga i ngā hua tātaitanga o mua he 6 Ohms.

Nō reira, ko te iahiko e tika ana mā te ātete whakakapinga R₂₃ ko:

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

Ko te iahiko e tika ana mā te ātete R ₂₃ = te iahiko e tika ana mā te ātete R ₂ = te iahiko e tika ana mā te ātete R ₃ = 2/3 Ampere.

8. Tirohia te ara iahiko hiko i te taha! Mena ko R1 ₌ R2 ₌ 10 Ω me R3 ₌ R4 ₌ 8 Ω. E hia te nui o te iahiko (I) e rere ana?

A. 0,5 A

B. 2 A

C. 36 A

D. 288 A

Kōrero

E mōhiotia ana:

Ātete R ₁ = Ātete R ₂ = 10 Ω

Ātete R ₃ = Ātete R ₄ = 8 Ω

Ngaohiko hiko (V) = 12 Volts

Pātai: Te kaha o te iahiko (I) e rere ana

Whakautu:

Ātete whakakapinga (R).

Kei te honoa whakarara te ātete R3 _me te ātete R4 _{, ko te ātete whakakapinga ko:}

1/R ₃₄ = 1/R ₃ + 1/R ₄ = 1/8 + 1/8 = 2/8

R ₃₄ = 8/2 = 4 Ω

Ka honoa raupapatia ngā ātete R1 _, R2 _me R34 _{, ko ngā ātete whakakapinga ko:}

R = R ₁ + R ₂ + R ₃₄ = 10 Ω + 10 Ω + 4 Ω = 24 Ω

Te kaha o te au hiko:

I = V / R = 12 Ngāohiko / 24 Ōhm = 0,5 Ngāohiko/Ōhm = 0,5 Ngā Amps

Ko te whakautu tika ko A.

9. Tirohia te pikitia o te ara iahiko hiko kua kati i te taha! Ki te kore e arohia te ātete i roto i te pākahiko, ko te iahiko (I) e rere ana i roto i te ara iahiko ko…..

A. 0,5 Āpere

B. 1 Āpere

C. 2 Āmpere

D. 3 Āmpere

Kōrero

E mōhiotia ana:

Ātete R ₁ = 3 Ohm

Ātete R ₂ = 3 Ohm

Ātete R ₃ = 6 Ohm

Ngaohiko hiko (V) = 6 Volts

Pātai: Te kaha o te au hiko (I)

Whakautu:

Tātaihia te ātete whakakapinga:

Ka honoa ngā ātete R1 _me R2 _{i roto i te raupapa. Ko ngā ātete whakakapinga ko:}

R ₁₂ = R ₁ + R ₂ = 3 Ōhm + 3 Ōhm = 6 Ōhm

Kei te honoa whakarara te ātete R12 me te ātete 3. Ko te ātete whakakapinga ko:

1/R = 1/R ₁₂ + 1/R ₃ = 1/6 + 1/6 = 2/6

R = 6/2 = 3 Ōhm

Te kaha o te au hiko:

I = V / R = 6 / 3 = 2 Āpere

Ko te whakautu tika ko C.

10. Tirohia te hoahoa ara iahiko kati i raro nei! Ko te iahiko katoa o te ara iahiko ko…

A. 0,5 A

B. 0,6 A

C. 1,2 A

D. 2,0 A

Kōrero

E mōhiotia ana:

Ātete R ₁ = 6 Ohm

Ātete R ₂ = 4 Ohm

Ngaohiko hiko (V) = 6 Volts

Ātete ā-roto (r) = 0,6 Ohm

Pātai: Te tapeke o te iahiko i roto i te ara iahiko

Whakautu:

Ātete R₁ me te ātete R₂ honoa whakarara. Ko te ātete whakakapinga ko:

1/R _P = 1/R1 + 1/R2 = 1/6 + 1/4 = 4/24 + 6/24 = 10/24

R _P = 24/10 = 2,4 Ōhm

Ātete R_P ā, ko te ātete ā-roto (r) e honoa raupapa ana. Ko te ātete ōrite ko:

R = R _P + r = 2,4 Ōhm + 0,6 Ōhm = 3,0 Ōhm

Ko te iahiko katoa o te ara iahiko ko:

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

Ko te whakautu tika ko D.

11.

Tirohia te ara iahiko hiko i te taha! Ko te rahi o te ngaohiko V ko…

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

Kōrero

E mōhiotia ana:
Ātete 1 (R₁) = 16 Ōhm
Ātete 2 (R₂) = 8 Ōhm
Ātete 3 (R₃) = 6 Ōhm
Iahiko (I) = 2 Āmpere
Pātai: Ngaohiko hiko (V)
Whakautu:
Ātete whakakapinga
R₁ tāne R₂ honoa raupapa. Ko te ātete whakakapinga ko:
R_A = R₁ + R₂ = 16 + 8 = 24 Ōhm
R_A tāne R₃ honoa whakarara. Ko te ātete whakakapinga ko:
1/R = 1/R_A + 1/R₃ = 1/24 + 1/6
1/R = 1/24 + 4/24 = 5/24
R = 24/5 = 4,8 Ōhm
Ngaohiko hiko :
V = IR = (2)(4,8) = 9,6 Ngāohiko
Ko te whakautu tika ko A.

12. Tirohia te hoahoa ara iahiko hiko kei te taha! Ki te kore e arohia te ātete i roto i te pūtake ngaohiko, ka whakaatuhia e te mita ngaohiko V he ngaohiko ine o...

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

Kōrero

E mōhiotia ana:
Ātete 1 (R₁) = 3,6 Ōhm
Ātete 2 (R₂) = 6 Ōhm
Ātete 3 (R₃) = 4 Ōhm
Iahiko (I) = 1,5 Āmpere
Pātai: Ngaohiko hiko (V)
Whakautu:
Ātete whakakapinga
R₂ tāne R₃ honoa whakarara. Ko te ātete whakakapinga ko:
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 Ōhm
R₁ tāne R_A honoa raupapa. Ko te ātete whakakapinga ko:
R = R₁ + R_A = 3,6 + 2,4 = 6 Ōhm
Ngaohiko hiko :
V = IR = (1,5)(6) = 9 Ngāohiko
Ko te whakautu tika ko C.

13.
Tirohia te hoahoa ara iahiko hiko kati e whai ake nei! Mēnā ka warewarehia te ātete i roto i te pūtake ngaohiko E, ka whakaatuhia e te mita ngaohiko V he ngaohiko kua inehia o...
A. 2 V
B. 4 V
C. 6 V
D. 12 V
Kōrero
E mōhiotia ana:
Ātete 1 (R₁) = 3 Ōhm
Ātete 2 (R₂) = 2 Ōhm
Ātete 3 (R₃) = 4 Ōhm
Iahiko (I) = 2 Āmpere
Pātai: Ngaohiko hiko (V)
Whakautu:
Ātete whakakapinga
R₂ tāne R₃ honoa raupapa. Ko te ātete whakakapinga ko:
R_A = R₂ + R₃ = 2 + 4 = 6 Ōhm
R₁ tāne R_A honoa whakarara. Ko te ātete whakakapinga ko:
1/R = 1/R₁ + 1/R_A = 1/3 + 1/6
1/R = 2/6 + 1/6 = 3/6
R = 6/3 = 2 Ōhm
Ngaohiko hiko :
V = IR = (2)(2) = 4 Ngāohiko
Ko te whakautu tika ko B.

14. I roto i te hoahoa ara iahiko hiko e whai ake nei, he rite tonu ngā rama mura ahi a A, B, C, D me E.

Ki te tangohia te rama B, ko te rama e kanapa ake ana ko...

A. rama A me C

B. rama A me D

C. rama C me D

D. rama C me E

E. rama D me E

Kōrero

Ko te tikanga o ngā rama mura e rima he rite tonu te ātete o ia rama.

Nā te mea he ōrite te ātete, ko te kanapa o te rama ka whakawhirinaki anake ki te kaha o te iahiko e rere ana i roto i te rama.

E ai ki te ture tuatahi a Kirchhoff, he rite tonu te iahiko e puta ana i roto i ngā rama D me E nā te mea he hononga raupapa rāua, ko te iahiko ia e puta ana i roto i te ara iahiko whakarara ka wehea.

Ki te tangohia te rama B, ko ngā rama e mura ake ana ko ngā rama D me E, ā, he rite tonu te mura o ngā rama e rua.

Ko te whakautu tika ko E.

15. Tirohia te hoahoa ara iahiko hiko e whai ake nei!

Mena he 24 volts te rerekētanga pūmanawa o te pūtake ngaohiko, ko te iahiko i te pūwāhi peka I ko…

A. 1,2 A

B. 2,0 A

C. 2,4 A

D. 3,0 A

Kōrero

E mōhiotia ana:

Pūtake EMF (E) = 24 Volts

Ātete ā-roto (r) = 2 Ohm

Ngā ātete 40 Ohm, 20 Ohm me te 20 Ohm.

Pātai: Te kaha o nāianei i te pūwāhi peka I

Whakautu:

E honoa ana ngā ātete e toru i te taha whakarara, ko ngā ātete whakakapinga ko:

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 Ōhm

Ngaohiko here:

V = E – I r

V = 24 – I 2

Te kaha o nāianei i te pūwāhi peka I:

V = IR

24 – I 2 = I 8

24 = 1 8 + 1 2

24 = I (10)

I = 24/10

I = 2,4 Āmpere

Ko te whakautu tika ko C.

Pūtake pātai:

Ngā Pātai Whakamātautau Pūtaiao ā-Motu mō te Kura Tuarua/Kura Tuarua Ihirama

Ngā Pātai Ahupūngao SBMPTN