ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā

ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā

1. Ma muli o ke kiʻi e like me ka mea i hōʻike ʻia ma lalo nei, inā I 1 = 5A, I 2 = 3 A, I 3 = 6 A, a laila I 4 = ………

ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 1Lōlā:

ʻŌlelo ke kānāwai mua a Kirchhoff ʻo ka huina o nā au a pau e komo ana i ka hui ʻana e like me ka huina o nā au a pau e haʻalele ana i ka hui ʻana.

Ke komo nei ʻo I 1 a me I 2 i ka huina, ʻoiai ʻo I 3 a me I 4 e haʻalele ana.

E hoʻopili i ke kānāwai mua a Kirchhoff:

ʻI 1 + ʻI 2 = ʻI 3 + ʻI 4

5 + 3 = 6 + 1 4

8 = 6 + I 4

ʻO 4 = 8 – 6

ʻI 4 = 2 Amperes

2. Inā ʻo I 1 = I 3 a laila ʻo I 4 =……..

ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 2ʻIke ʻia:

ʻI 1 = ʻI 3 = 2 Amperes

ʻI 2 = 3 Amperes

ʻI 5 = 4 Amperes

Makemake ʻia: I 4

Lōlā:

Ke komo nei ʻo I 1 a me I 4 i ka huina, ʻoiai ʻo I 2 , I 3 , a me I 5 e haʻalele ana.

E hoʻopili i ke kānāwai mua a Kirchhoff:

ʻI 1 + ʻI 4 = ʻI 2 + ʻI 3 + ʻI 5

2 + I 4 = 3 + 2 + 4

2 + 1 4 = 9

ʻO 4 = 9 – 2

ʻI 4 = 7 Ampere

3. ʻO 1 = …….

Lōlā:ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 3

Ke komo nei au i ke kihi, ʻoiai ʻo I 1 , I 2 , a me I 3 e haʻalele ana.

E hoʻopili i ke kānāwai mua a Kirchhoff:

ʻO wau = ʻO wau 1 + ʻO wau 2 + ʻO wau 3

7 A = I 1 + 1 A + 4 A

7 A = I 1 + 5 A

7 A – 5 A = I 1

ʻI 1 = 2 Amperes

4. ʻO 2 = ………

Makemake: I2ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 4

Lōlā:

Ke komo nei ʻo I 1 i ka huina, ʻoiai ʻo I 2, I 3, a me I 4 e haʻalele ana.

E hoʻopili i ke kānāwai mua a Kirchhoff:

ʻO 1 = ʻO 2 + ʻO 3 + ʻO 4

6 = I 2 + 3 + 1

6 = I 2 + 4

ʻI 2 = 6 – 4

ʻI 2 = 2 Amperes

5. Inā ʻo I 2 = 1/4 I 1 , a laila ʻo I 3 = ………

ʻIke ʻia:ʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 5

ʻO I 1 = 600 milliAmperes

Makemake ʻia: I 3

Lōlā:

I 2 = 1/4 I 1 = 1/4 (600 mA) = 150 mA

Ke komo nei ʻo I 1 i ka huina alanui, ʻoiai ʻo I 2 a me I 3 e haʻalele ana.

E hoʻopili i ke kānāwai mua a Kirchhoff:

ʻO 1 = ʻO 2 + ʻO 3

600 mA = 150 mA + I 3

ʻO 3 = 600 mA - 150 mA

I3 = 450 mA

6. Ma muli o ke kiʻi ma lalo nei, e ʻimi iā I!

Lōlā:

E hoʻopili i ke kānāwai mua a Kirchhoff:

3 + 5 + 2 = 7 + IʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 10

10 = 7 + I

10 – 7 = ʻAu

ʻO I = 3 Amperes

7. Ma muli o ke kiʻi ma lalo nei, inā I 1 = 4 A, I 2 = 3 A, I 4 = 7 A, I 5 = 4 A, e hoʻoholo i ka I 3.

Lōlā:

Ke au uila e komo ana i ka hui ʻana = I 1 + I 3 = 4 A + I 3

Ke au uila e haʻalele ana i ka hui ʻana =I2 + ʻO wau4 + ʻO wau5 = 3 A + 7 A + 4 A = 14 AʻO ke kānāwai mua a Kirchhoff - nā pilikia a me nā hoʻonā 11

14 A = 4 A + I 3

ʻO 3 = 14 A – 4 A

ʻO 3 = 10 A

  1. He aha ke kumumanaʻo nui ma hope o ke Kānāwai Mua a Kirchhoff?
    • paneʻO ke kumumanaʻo nui ma hope o ke Kānāwai Mua a Kirchhoff ʻo ia ka mālama ʻana i ka uku uila. ʻO ia hoʻi, ʻaʻohe uku i nalowale ma kekahi kikowaena a i ʻole ka hui ʻana i loko o kahi kaapuni.
  2. Inā ʻekolu mau au, , , a , e hui pū ma kahi kikowaena a ke komo nei ʻoiai a ke haʻalele nei, pehea e hōʻike ʻia ai ʻo KCL no kēia node?
    • paneWahi a KCL, .
  3. No ke aha he mea nui ʻo KCL i ka nānā ʻana i nā kaapuni uila?
    • paneHāʻawi ʻo KCL i kahi palena kumu e pono ai i kekahi hopena kūpono i kahi pilikia kaapuni ke hoʻokō, e hōʻoia ana e pili ana ke ʻano o nā au i loko o kahi pūnaewele i ke kumumanaʻo mālama o ka uku.
  4. Loaʻa iā KCL wale nō no nā kaapuni DC a i ʻole no nā kaapuni AC pū kekahi?
    • paneHe kūpono ʻo KCL no nā kaapuni DC a me AC. He hōʻike ia o ka mālama ʻana i ka uku, he mea ākea ia, me ka nānā ʻole i ke ʻano o ka loli ʻana o nā au i ka hala ʻana o ka manawa.
  5. I loko o kahi kaapuni me kekahi mau kikowaena, pono anei e hoʻopili iā KCL i kēlā me kēia kikowaena e kālailai piha i ke kaapuni?
    • paneʻAʻole i nā manawa a pau. ʻOiai hiki iā ʻoe ke hoʻopili iā KCL i kēlā me kēia kikowaena, ʻo ka nānā pinepine ʻana i kahi ʻāpana o nā kikowaena ua lawa ia e hoʻoholo ai i ke ʻano o ke kaapuni holoʻokoʻa.
  6. Pehea e pili ai ka manaʻo o kahi "honua" a i ʻole ke kikowaena kuhikuhi i loko o kahi kaapuni me KCL?
    • paneʻO kahi kikowaena honua a kikowaena kuhikuhi paha e lawelawe ma ke ʻano he kiko kuhikuhi maʻamau no nā voltages i loko o ke kaapuni. ʻO ka hoʻopili ʻana iā KCL i kēia kikowaena, e like me nā kikowaena ʻē aʻe, e hōʻoiaʻiʻo ana he ʻole ka huina o nā au. ʻAʻole pili ka honua i ka hiki ke hoʻohana a i ʻole ka hopena o KCL.
  7. Inā ʻelua wale nō lālā i pili i kahi kikowaena iā ia, a ua ʻike ʻia ke au ma kekahi lālā, pono anei e hoʻoponopono no ke au ma kekahi lālā me ka hoʻohana ʻana iā KCL?
    • paneʻAʻole, inā ʻike ʻia ke au ma kekahi lālā a ʻelua wale nō lālā i pili i ke kikowaena, ʻo ke au ma kekahi lālā ʻo ia wale nō ka maikaʻi ʻole o ke au i ʻike ʻia (e hōʻike ana aia ia ma ke ʻaoʻao ʻē aʻe).
  8. Pehea e pili ai ke ʻano o nā capacitors i loko o kahi kaapuni iā ​​KCL?
    • paneʻOiai hiki i nā capacitors ke mālama i ka uku, ʻo ka nui o ka uku e komo ana i kahi capacitor ua like ia me ka nui o ka uku e haʻalele ana i kāna kikowaena ʻē aʻe. No laila, ʻoiai me nā capacitors, ʻo ke au net ma kahi node (me kahi node ma kekahi kikowaena o ka capacitor) he zero, a ke kūpono nei ʻo KCL.
  9. Ma nā kaapuni hana me nā ʻāpana maoli, paʻa pono anei ʻo KCL, a i ʻole he mau ʻokoʻa?
    • paneMa ke ʻano loiloi kaapuni kūpono, paʻa pono ʻo KCL. Ma nā kūlana maoli, loaʻa paha i nā ʻāpana nā kahe leaka liʻiliʻi a i ʻole nā ​​​​hopena parasitic, akā no ka hapa nui o nā kumu kūpono a me nā loiloi, ua manaʻo ʻia ʻo KCL he ʻoiaʻiʻo.
  10. I ka manawa hea e hoʻohana ai kekahi i ke kānāwai mua (o kēia manawa) a me ke kānāwai ʻelua (o ka voltage) a Kirchhoff i ke kālailai ʻana i kahi kaapuni?
  • paneMa nā kaapuni paʻakikī he nui, ʻoiai nā mea me nā loop a me nā node he nui, hoʻohana pū ʻia ʻo KCL (First Rule) a me ke Kirchhoff's Voltage Law (Second Rule) e hoʻonohonoho i kahi ʻōnaehana o nā kaulike e hiki ke hoʻoponopono ʻia e hoʻoholo i nā au a me nā voltages i ʻike ʻole ʻia ma loko o ke kaapuni.
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