Circuit analysis on a supernode

In summary, The conversation is about finding the value of vx within a supernode using Kirchhoff's laws. The person has attached an exercise and is seeking pointers on how to solve it. They mention using Khan Academy tutorials and clarifying what the "m" stands for in this case. An explanation is given that "m" stands for mili or *10^-3. It is suggested to show work before seeking further help.
  • #1
Purpleshinyrock
27
6
Homework Statement
Find Vx given:
R1 = 6kW; R2 = 6kW;
R3 = 2kW; R4 = 3kW;
VS = 5V; IS = 5mA
Relevant Equations
V=IR
Hello.
Can someone give m e pointers on how to find the value of vx given that it is inside a supernode(will it be the valueof the voltage inside or the difference of potential between the two nodes?): here's the exercise and what I've done so far attached.
Your time and attention are deeply appreciated.
Thank You.
 

Attachments

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  • #2
I think you forgot to attach your work?
Anyway, you'll want to use Kirchhoff's laws to make a set of equations to solve.
Khan Academy has some good tutorials on this subject.
 
  • #3
I'm missing something. What does the "m" stand for in this case?
1648917797182.png
 
  • #4
phinds said:
I'm missing something. What does the "m" stand for in this case?
View attachment 299315
mili or (*10^-3)
 
  • Informative
Likes phinds
  • #5
Purpleshinyrock said:
mili or (*10^-3)
OK, so you've got everything you need to write equations using Kirchoff, just as @DaveE said.

You HAVE to show some work before we can be any more help
 

1. What is a supernode in circuit analysis?

A supernode is a combination of two or more nodes in a circuit that are connected by a voltage source. This allows for easier analysis of complex circuits by reducing the number of equations needed.

2. How do you identify a supernode in a circuit?

To identify a supernode in a circuit, look for two or more nodes that are connected by a voltage source. The voltage source can be either a dependent or independent source.

3. What is the purpose of using a supernode in circuit analysis?

The purpose of using a supernode in circuit analysis is to simplify the analysis process. By combining multiple nodes into a single supernode, the number of equations needed to solve the circuit is reduced, making it easier to analyze complex circuits.

4. How do you apply Kirchhoff's Current Law (KCL) to a supernode?

To apply KCL to a supernode, treat the supernode as a single node and use the total current entering the supernode as the sum of all currents leaving the supernode. This allows for the application of KCL to a more complex circuit with fewer equations.

5. Can a supernode be used in any circuit?

Yes, a supernode can be used in any circuit as long as there is a voltage source connecting two or more nodes. However, it is most commonly used in circuits with dependent sources or in circuits with multiple current sources.

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