Resistor Combination: Current and Potential Difference Calculation

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Homework Help Overview

The discussion revolves around a problem involving the calculation of current at a specific point in a circuit and the potential difference between two points, A and B, in a resistor combination setup. The subject area is electrical circuits, specifically focusing on resistors in parallel and the effects of battery polarity.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants explore the configuration of resistors, questioning whether they are in parallel and discussing the implications of a potential short circuit. There is also inquiry into the representation of point X and the significance of battery polarity.

Discussion Status

The discussion is active, with participants sharing observations about the circuit configuration and potential issues, such as the battery's polarity. Some guidance has been offered regarding the simplification of the problem due to the parallel arrangement of resistors, but no consensus has been reached on the presence of a short circuit.

Contextual Notes

Participants note the battery voltage of 2V and express confusion regarding the circuit's setup, particularly concerning the battery's orientation and the implications for current flow.

smaung
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Hello,

I have a tricky problem with resistors combination.

please check this url - http://www.disruptedstreets.com/physics.png

Can anybody help me with this?

Thanks

The Question is -

Calculate the Current at Point X and potential difference between points A and B.
 
Last edited by a moderator:
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looks to me like R1, R2, R3 are in parallel and the pot. difference between A and B is that provided by the battery.
 
yes me too

but some said ... there is a short circuit. but i don't know where is it ... :( and that's why I'm confused.
 
What does "X" represent?
 
"X" is the current at that point. We need to find the current ( I ) at "X". AND potential difference ( V ) between "A" and "B".
 
Oh sorry I Forgot. The battery is 2V.
 
I don't see any short-circuit. But in any case as jablonsky27 has noted, the three resistors are all in parallel. That should simplify the problem tremendously.
 
yea me too.. but.. there is another fault. the polarities of the battery is wrong .. positive is up and negative is down

can you please calculate the answers for me ?
 
smaung said:
yea me too.. but.. there is another fault. the polarities of the battery is wrong .. positive is up and negative is down

Turn the paper over.

can you please calculate the answers for me ?

No.

Compute the total resistance, apply Ohms law.
 
  • #10
ok thanks.
 

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