Circuit Analysis: Find E3 Given Diagram

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Homework Help Overview

The discussion revolves around a circuit analysis problem where the goal is to determine the electromotive force (emf) E3 in relation to other quantities in a provided circuit diagram. The problem states that the state of a switch (open or closed) does not affect the outcome.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants explore the implications of the switch's state on the emf E3, with some suggesting that E3 can be defined regardless of the switch's position. Others express the need for the circuit diagram to provide meaningful assistance.

Discussion Status

The discussion is ongoing, with various interpretations being explored regarding the relationship between E3 and the switch's state. Some participants have suggested using Kirchhoff's laws as a potential approach, while others emphasize the importance of providing effort in the problem-solving process.

Contextual Notes

There is a noted constraint regarding the visibility of the circuit diagram, which is pending approval for viewing. This limitation affects the ability of participants to provide specific guidance or assistance.

polymerase
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The questions says that it doesn't matter if the switch is open or closed.

It asks, what is the emf E3 in terms of the other quantities shown.

I have attached a diagram of the circuit.

Thank you in advance.
 

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can anyone help with this problem please...
 
polymerase said:
can anyone help with this problem please...

We can't help because we can't see the figure yet (it has not been approved for viewing yet). Unless you have it available on some website and you provide the link or you describe it in words, we will have to wait before we can help.
 
If it doesn't matter, then E3 is just the voltage between those two points with the switch open.
 
Use Kirchoff's laws to solve this problem and ask if u get stuck somewhere.

The thing is.. in the homework forum.. we can't really help you unless you show some efforts from your side too.
 
rohanprabhu said:
Use Kirchoff's laws to solve this problem and ask if u get stuck somewhere.

The thing is.. in the homework forum.. we can't really help you unless you show some efforts from your side too.

What he said.

Also, is the switch open or closed? If it's open, then your answer is very easy.
 
polymerase said:
The questions says that it doesn't matter if the switch is open or closed.

that is impossible. You see.. switches were invented for a reason.
 
My guess is that the original problem statement is actually asking for E3 for either state of the switch.
 
wait a minute.. since E3 is the e.m.f of the battery.. isn't it totally arbitrary and as such independent of any other variables?
 

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