Circuit Analysis: Find E3 Given Diagram

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SUMMARY

The discussion centers on determining the electromotive force (emf) E3 in a circuit diagram, regardless of the switch's state. Participants emphasize the necessity of using Kirchhoff's laws to analyze the circuit effectively. The consensus is that E3 represents the voltage between two points when the switch is open, and its value remains independent of other variables. The lack of a visible diagram hampers further assistance, highlighting the importance of providing complete information in problem-solving.

PREREQUISITES
  • Understanding of Kirchhoff's laws
  • Basic knowledge of electromotive force (emf)
  • Familiarity with circuit analysis techniques
  • Ability to interpret circuit diagrams
NEXT STEPS
  • Study Kirchhoff's Voltage Law (KVL) in detail
  • Learn about the concept of electromotive force (emf) in circuits
  • Explore circuit analysis techniques using simulation tools like LTspice
  • Review common circuit configurations and their analysis methods
USEFUL FOR

Students in electrical engineering, circuit designers, and anyone involved in circuit analysis or homework assistance related to electromotive force and circuit behavior.

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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