Txoj Cai Thawj Zaug ntawm Kirchhoff - Teeb Meem thiab Kev Dais Teeb Meem

Txoj Cai Thawj Zaug ntawm Kirchhoff - Teeb Meem thiab Kev Dais Teeb Meem

1. Raws li daim duab qhia hauv qab no, yog tias I 1 = 5A, I 2 = 3 A, I 3 = 6 A, ces I 4 = ………

Txoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 1Tshuaj:

Txoj cai thawj zaug ntawm Kirchhoff hais tias qhov sib npaug ntawm tag nrho cov dej ntws nkag mus rau hauv qhov sib tshuam yuav tsum sib npaug rau qhov sib npaug ntawm tag nrho cov dej ntws tawm hauv qhov sib tshuam.

Kuv 1 thiab kuv 2 tab tom nkag mus rau hauv qhov chaw sib tshuam, thaum kuv 3 thiab kuv 4 tab tom tawm mus.

Siv txoj cai thawj zaug ntawm Kirchhoff:

Kuv 1 + Kuv 2 = Kuv 3 + Kuv 4

5 + 3 = 6 + 1 4

8 = 6 + Kuv 4

Kuv 4 = 8 – 6

Kuv 4 = 2 Amperes

2. Yog tias kuv 1 = kuv 3 ces kuv 4 =……..

Txoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 2Paub:

Kuv 1 = Kuv 3 = 2 Amperes

Kuv 2 = 3 Amperes

Kuv 5 = 4 Amperes

Xav tau: Kuv 4

Tshuaj:

Kuv 1 thiab kuv 4 tab tom nkag mus rau hauv qhov chaw sib tshuam, thaum kuv 2 , kuv 3 , thiab kuv 5 tab tom tawm mus.

Siv txoj cai thawj zaug ntawm Kirchhoff:

Kuv 1 + Kuv 4 = Kuv 2 + Kuv 3 + Kuv 5

2 + Kuv 4 = 3 + 2 + 4

2 + 1 4 = 9

Kuv 4 = 9 – 2

Kuv 4 = 7 Amperes

3. Kuv 1 = …….

Tshuaj:Txoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 3

Kuv tab tom nkag mus rau ntawm qhov chaw sib tshuam, thaum kuv 1 , kuv 2 , thiab kuv 3 tab tom tawm mus.

Siv txoj cai thawj zaug ntawm Kirchhoff:

Kuv = Kuv 1 + Kuv 2 + Kuv 3

7 A = Kuv 1 + 1 A + 4 A

7 A = Kuv 1 + 5 A

7 A – 5 A = Kuv 1

Kuv 1 = 2 Amperes

4. Kuv 2 = ………

SE pob: I2Txoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 4

Tshuaj:

Kuv 1 tab tom nkag mus rau hauv qhov chaw sib tshuam, thaum kuv 2, kuv 3, thiab kuv 4 tab tom tawm mus.

Siv txoj cai thawj zaug ntawm Kirchhoff:

Kuv 1 = Kuv 2 + Kuv 3 + Kuv 4

6 = Kuv 2 + 3 + 1

6 = Kuv 2 + 4

Kuv 2 = 6 – 4

Kuv 2 = 2 Amperes

5. Yog tias kuv 2 = 1/4 kuv 1 , ces kuv 3 = ………

Paub:Txoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 5

Kuv 1 = 600 milliAmperes

Xav tau: Kuv 3

Tshuaj:

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

Kuv 1 tab tom nkag mus rau ntawm qhov chaw sib tshuam, thaum kuv 2 thiab kuv 3 tab tom tawm mus.

Siv txoj cai thawj zaug ntawm Kirchhoff:

Kuv 1 = Kuv 2 + Kuv 3

600 mA = 150 mA + Kuv 3

Kuv 3 = 600 mA – 150 mA

I3 = 450 mA

6. Raws li daim duab hauv qab no, nrhiav kuv!

Tshuaj:

Siv txoj cai thawj zaug ntawm Kirchhoff:

3 + 5 + 2 = 7 + KuvTxoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 10

10 = 7 + Kuv

10 – 7 = Kuv

Kuv = 3 Ampere

7. Raws li daim duab hauv qab no, yog tias I 1 = 4 A, I 2 = 3 A, I 4 = 7 A, I 5 = 4 A, txiav txim siab I 3.

Tshuaj:

Tam sim no hluav taws xob nkag mus rau hauv qhov sib tshuam = I 1 + I 3 = 4 A + I 3

Lub zog hluav taws xob tawm ntawm qhov sib tshuam = Kuv2 + Kuv4 + Kuv5 = 3 A + 7 A + 4 A = 14 ATxoj cai thawj zaug ntawm Kirchhoff - teeb meem thiab kev daws teeb meem 11

14 A = 4 A + Kuv 3

Kuv 3 = 14 A – 4 A

Kuv 3 = 10 A

  1. Lub hauv paus ntsiab lus tseem ceeb tom qab Kirchhoff Txoj Cai Thawj Zaug yog dab tsi?
    • tebLub hauv paus ntsiab lus tseem ceeb tom qab Kirchhoff Txoj Cai Thawj Zaug yog kev txuag hluav taws xob. Nws txhais tau tias tsis muaj hluav taws xob poob ntawm txhua qhov chaw lossis qhov sib tshuam hauv lub voj voog.
  2. Yog tias peb lub zog, , , Thiab , sib sau ua ke ntawm ib lub node thiab yog nkag mus thaum thiab tab tom tawm mus, KCL qhia li cas rau qhov node no?
    • tebRaws li KCL hais, .
  3. Vim li cas KCL thiaj tseem ceeb hauv kev tshuaj xyuas cov hluav taws xob?
    • tebKCL muab ib qho kev txwv tseem ceeb uas txhua qhov kev daws teeb meem rau qhov teeb meem ntawm lub voj voog yuav tsum ua kom tiav, kom ntseeg tau tias tus cwj pwm ntawm cov hluav taws xob hauv lub network ua raws li txoj cai txuag hluav taws xob.
  4. Puas yog KCL siv tau rau DC circuits xwb lossis rau AC circuits?
    • tebKCL siv tau rau ob qho tib si DC thiab AC circuits. Nws yog ib qho kev xav txog kev txuag hluav taws xob, uas yog thoob ntiaj teb, tsis hais txog qhov hloov pauv ntawm cov dej ntws li cas dhau sijhawm.
  5. Hauv ib lub voj voog uas muaj ntau lub nodes, puas tsim nyog siv KCL rau txhua lub node los tshuaj xyuas lub voj voog tag nrho?
    • tebTsis yog txhua lub sijhawm. Txawm hais tias koj tuaj yeem siv KCL rau txhua lub node, feem ntau kev tshuaj xyuas ib pawg ntawm cov nodes txaus los txiav txim siab tus cwj pwm ntawm tag nrho lub voj voog.
  6. Lub tswv yim ntawm "av" lossis qhov chaw siv hauv lub voj voog cuam tshuam li cas rau KCL?
    • tebIb lub av lossis ib lub node siv ua ib qho chaw siv rau cov voltages hauv lub circuit. Kev siv KCL rau lub node no, zoo li lwm lub node, ua kom cov currents sib npaug zos. Av tsis cuam tshuam rau qhov siv tau lossis qhov tshwm sim ntawm KCL.
  7. Yog tias ib lub node tsuas muaj ob ceg txuas nrog nws, thiab qhov tam sim no hauv ib ceg paub, puas tsim nyog los daws qhov tam sim no hauv lwm ceg siv KCL?
    • tebTsis yog, yog tias qhov tam sim no hauv ib ceg paub thiab tsuas muaj ob ceg txuas nrog lub node, qhov tam sim no hauv lwm ceg tsuas yog qhov tsis zoo ntawm qhov tam sim no paub (qhia tias nws nyob rau hauv qhov kev taw qhia rov qab).
  8. Tus cwj pwm ntawm cov capacitors hauv ib lub voj voog muaj feem cuam tshuam li cas rau KCL?
    • tebTxawm hais tias cov capacitors tuaj yeem khaws cov nqi hluav taws xob, qhov nqi ntawm cov nqi hluav taws xob nkag mus rau hauv lub capacitor yog sib npaug rau qhov nqi ntawm cov nqi hluav taws xob tawm ntawm nws qhov chaw nres nkoj. Yog li ntawd, txawm tias muaj cov capacitors, qhov tam sim no ntawm ib lub node (suav nrog lub node ntawm ib qho chaw nres nkoj ntawm lub capacitor) yog xoom, thiab KCL tseem siv tau.
  9. Hauv cov voj voog siv tau nrog cov khoom tiag tiag, KCL puas tuav tau zoo, lossis puas muaj qhov tshwj xeeb?
    • tebHauv kev tshuaj xyuas lub voj voog zoo tagnrho, KCL tuav tau zoo heev. Hauv cov xwm txheej tiag tiag, cov khoom yuav muaj cov dej ntws me me lossis cov teebmeem parasitic, tab sis rau feem ntau cov hom phiaj thiab kev tshuaj xyuas, KCL raug xav tias tuav tau qhov tseeb.
  10. Thaum twg ib tug neeg yuav siv ob qho tib si Kirchhoff Txoj Cai Thawj (Current) thiab Txoj Cai Thib Ob (Voltage) hauv kev tshuaj xyuas lub voj voog?
  • tebHauv ntau lub voj voog nyuaj, tshwj xeeb tshaj yog cov uas muaj ntau lub voj voog thiab cov nodes, ob qho tib si KCL (Txoj Cai Thawj) thiab Kirchhoff's Voltage Law (Txoj Cai Thib Ob) yog siv ua ke los teeb tsa ib lub kaw lus ntawm cov qauv uas tuaj yeem daws tau los txiav txim siab cov tam sim no thiab cov voltages tsis paub thoob plaws hauv lub voj voog.
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