Using superpostion to find voltage

  • Thread starter duffman1278
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In summary, superposition is a principle in electronics that allows us to find the total voltage in a circuit by breaking it down into smaller parts. It can be used on any linear circuit, but has limitations such as only being applicable to DC circuits and not being able to analyze dependent sources. By following specific steps, superposition can be used to find voltage at a desired point in a circuit.
  • #1
duffman1278
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I cannot seem to figure out how to start this problem when I eliminate the 12V source.

I don't seem to see any resistors that are in parrallel or series. I'm just completely blank on this.

Hopefully someone can put me in the right direction for this problem already.


[PLAIN]http://img709.imageshack.us/img709/2996/sdf4ef43.jpg [Broken]
 
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  • #2
This looks like a homework problem.

Do you know how to write mesh equations?
 

What is superposition and how does it relate to finding voltage?

Superposition is a principle in electronics that states that the total voltage or current in a circuit is the sum of the individual voltages or currents in each component. This means that to find the voltage at a specific point in a circuit, we can break down the circuit into smaller parts and use superposition to analyze each part separately before combining them to get the overall voltage.

What are the steps to using superposition to find voltage?

The steps to using superposition to find voltage are:

  1. Identify the desired point where you want to find the voltage.
  2. Remove all voltage sources from the circuit except for the one you are analyzing.
  3. Calculate the voltage at the desired point using Ohm's law and any other relevant equations.
  4. Repeat for each voltage source in the circuit, one at a time.
  5. Add up all the individual voltages calculated in step 3 to get the total voltage at the desired point.

What types of circuits can superposition be used on?

Superposition can be used on any linear circuit, which is a circuit where the relationship between voltage and current is proportional and follows Ohm's law. This includes simple circuits with resistors, as well as more complex circuits with capacitors and inductors.

Can superposition be used to find current instead of voltage?

Yes, superposition can be used to find the current at a specific point in a circuit by following the same steps as finding voltage. However, it is important to note that in order to use superposition, the circuit must be broken down into smaller parts and analyzed individually. This can be more complex for circuits with multiple current sources, so using other analysis techniques may be more efficient in those cases.

Are there any limitations to using superposition to find voltage?

Yes, there are a few limitations to using superposition to find voltage:

  • Superposition can only be used on linear circuits, as mentioned earlier.
  • It can only be used for DC circuits, as the principle of superposition does not apply to AC circuits.
  • If the circuit has dependent sources, the analysis can become more complicated and may require additional techniques.
  • Superposition can only be used to find the voltage at a specific point in the circuit, not the voltage across or between multiple points.

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