Black box which contains 5x 1ohm resistors

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Discussion Overview

The discussion revolves around determining the configuration of five 1-ohm resistors inside a black box with three terminals, based on measured resistances between the terminals A, B, and C. The context includes exploring the implications of these measurements and the reasoning behind potential configurations.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant presents measured resistances of 1.5 ohms between A and B, 3 ohms between B and C, and 2.5 ohms between A and C, prompting a request for the configuration of the resistors.
  • Another participant expresses a need for visual aids, indicating that a picture of the setup would be helpful for understanding.
  • A later reply suggests that while a proposed solution may be acceptable, self-verification of the solution is emphasized as a necessary skill.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the configuration of the resistors, and the discussion includes varying perspectives on the necessity of visual aids and self-checking solutions.

Contextual Notes

Limitations include the lack of visual representation of the resistor configuration and the absence of detailed reasoning behind the proposed solutions or measurements.

altruan23
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Homework Statement
I solved it but im not sure if correct, resistance circuit problem.
Relevant Equations
r1*r2/r1+r2 --> 2 parallel resistors.
r1+r2 --> seriel resistors.
You are given a black box with three terminals, as shown below. The box is known to
contain five 1-ohm resistors. Using an ohm-meter, you measure the resistance between the terminals to be the following:
A - B: 1.5 ohms
B - C: 3 ohms
A - C: 2.5 ohms
Determine the configuration of the five resistors inside the box.
So on the left side is the Terminal A, on the right side is B and below is C.
 

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Last edited:
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altruan23 said:
I can't upload a picture
Why not?
 
ok i can now, for some reason it didnt work earlier
 
Yes, your solution is good, but checking it yourself is something that you need to learn.
 
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