Voltages in Supernode: Shafia Needs Help!

  • Thread starter Thread starter Shafia Zahin
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SUMMARY

The discussion centers on the concept of supernodes in nodal analysis, specifically regarding ideal voltage sources. It is established that supernodes do not possess their own voltage, as they are defined by the nodes they connect. Additionally, it is clarified that the current through an ideal voltage source cannot be predetermined without knowing the connected circuit conditions, necessitating the use of both Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL). For practical applications, when modeling real voltage sources, one should use an ideal voltage source in series with an external resistance to account for internal resistance.

PREREQUISITES
  • Understanding of Nodal Analysis
  • Familiarity with Kirchhoff's Current Law (KCL)
  • Knowledge of Kirchhoff's Voltage Law (KVL)
  • Concept of ideal and real voltage sources
NEXT STEPS
  • Study the principles of Nodal Analysis in electrical circuits
  • Learn about the characteristics of ideal vs. real voltage sources
  • Explore the application of KCL and KVL in circuit analysis
  • Investigate the impact of internal resistance on voltage sources
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing electrical circuits using nodal analysis techniques.

Shafia Zahin
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Hello Guys,
I have a problem in understanding Nodal Analysis with Voltage Sources.It says that a supernode has no voltage of its own.But I can't understand why?
Again,one more question,it says that there is no way of knowing the current through a voltage source in advance and that's why we have to use both KCL and KVL in case of a supernode.But what if the internal resistance of the voltage source is given?then we can know the current through it easily, or can't we?
I'm so confused,please help..:confused:
Shafia.
 
Engineering news on Phys.org
Ideal voltage sources have no internal resistance. If you are modeling a real life voltage source, use an ideal voltage source in series with an external resistance.
 

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