Complex circuits with Kirchoff's law

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SUMMARY

The discussion focuses on solving complex circuits using Kirchhoff's law. A user encountered a mathematical error while inputting values into their calculator, specifically regarding the electromotive force (emf) and the independence of node equations. The participant named "ehild" pointed out the necessity of correctly inputting the emf value and highlighted that the node equations in the circuit are not independent, which is crucial for accurate calculations.

PREREQUISITES
  • Understanding of Kirchhoff's Voltage Law (KVL)
  • Familiarity with circuit diagrams and node analysis
  • Basic proficiency in using scientific calculators for circuit calculations
  • Knowledge of electromotive force (emf) and its role in circuit analysis
NEXT STEPS
  • Review Kirchhoff's Current Law (KCL) for comprehensive circuit analysis
  • Practice solving circuit problems using node voltage analysis
  • Learn how to correctly input values into scientific calculators for circuit equations
  • Explore the implications of dependent and independent node equations in circuit theory
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing complex electrical circuits using Kirchhoff's laws.

serverxeon
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I have the diagram on the right,

I've set up a few equations to solve...

My calculator tell me mathematical error. can someone point out the error? thanks.

http://img21.imageshack.us/img21/5395/imgyqc.jpg
 
Last edited by a moderator:
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You have to input the value of the emf. The node equations are not independent. ehild
 

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