Calculate the current between point A and B

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Homework Help Overview

The discussion revolves around calculating the current between two points, A and B, in a circuit involving multiple resistors. The circuit includes resistors R1, R2, R3, and R4 with given values, and the voltage supply is 12V. Participants are exploring the relationships between voltage, current, and resistance in the context of parallel and series connections.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the method of calculating total resistance in parallel and series configurations, questioning the setup of resistors R1, R2, R3, and R4. There is an exploration of how to determine the current through each resistor and the implications of voltage drops across them.

Discussion Status

The discussion is ongoing, with participants providing various insights into the calculations and relationships between resistors. Some guidance has been offered regarding the use of formulas for parallel resistors, but there is still uncertainty about the correct application of these concepts and the interpretation of results.

Contextual Notes

Participants are grappling with the definitions and applications of voltage and current in the context of their circuit analysis. There is confusion regarding the voltage drops across resistors in parallel and the overall current distribution in the circuit.

  • #31
SammyS said:
From the direction of current through R1 and R3 and the difference in the currents.

Double check all results by considering R2 & R4 as well.

Yeah that makes a lot of sense! The direction of the current must be from A to B then.
 
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  • #32
meguco0314 said:
Yeah that makes a lot of sense! The direction of the current must be from A to B then.
Yes.
 
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  • #33
wow, that was exhausting - but well done SammyS, that was an excellent walk though.
 
  • #34
William White said:
wow, that was exhausting - but well done SammyS, that was an excellent walk though.
Thanks.

@Qwertywerty ,

Your suggestions were fine, but I felt that meguco0314 would benefit from using basics rather than using a proportionality argument for finding individual currents.
 
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  • #35
Yes thank you so much! Your help was awesome! I learned more than a thing or two from this, and I hope others will benefit from this thread as well. :)
 

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