Unsolved Circuit Question: Ammeter Reading and Potential Difference

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Homework Help Overview

The discussion revolves around a circuit problem involving an ammeter reading and potential difference between two points. The original poster expresses difficulty in solving the problem and references a specific answer choice.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants explore the implications of the ammeter reading zero, questioning the relationship between current and potential difference. There is a focus on the configuration of resistors in the circuit and how they are connected.

Discussion Status

Participants are actively engaging with the problem, offering hints and prompting further clarification on the circuit's configuration. There is an ongoing exploration of the connections between components, but no consensus has been reached on the solution.

Contextual Notes

Some participants note the complexity of the question and the need for specific details regarding the arrangement of resistors, indicating that assumptions about the circuit's setup are under discussion.

Peter R

Homework Statement


So here is a circuit question that I couldn't solve

Homework Equations


V=IR

The Attempt at a Solution


So I assumed that since the ammeter gives no reading it should lead to no potential difference in between those two points, then I'm completely stuck. Please help, the answer is D for reference:)
 

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Think in terms of what is necessary, even if it is not sufficient.

(Nasty question though!)
 
Peter R said:
So I assumed that since the ammeter gives no reading it should lead to no potential difference in between those two points,
Ok, so now you can remove the ammeter from the circuit. It won't make any difference.

So how are R1 and R2 connected? How are R3 and R4 connected?
 
Tom.G said:
Think in terms of what is necessary, even if it is not sufficient.

(Nasty question though!)
Still have no clue man, a little more hint?
 
cnh1995 said:
Ok, so now you can remove the ammeter from the circuit. It won't make any difference.

So how are R1 and R2 connected? How are R3 and R4 connected?
Ehh please be more specific man, thanks for the reply
 
Peter R said:
Ehh please be more specific man, thanks for the reply
Have you studied series and parallel connections? How are R1 and R2 connected?
 
cnh1995 said:
Have you studied series and parallel connections? How are R1 and R2 connected?
Yea they are in series with the same current but shared voltage.
 

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