Current Flow in a Parallel Circuit

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Discussion Overview

The discussion revolves around understanding a formula related to current flow in a parallel circuit, as presented in an example from a basic electricity course. Participants are addressing a specific confusion regarding the example and its mathematical components.

Discussion Character

  • Homework-related

Main Points Raised

  • A participant expresses confusion about a formula in an example from a basic electricity course and seeks verification of its correctness.
  • Another participant finds the example straightforward and requests clarification on the specific points of confusion.
  • A third participant confirms the correctness of the example and encourages the original poster to provide more details about their misunderstanding.
  • The original poster later acknowledges a lapse in their mathematical skills, specifically in finding the lowest common denominator, which contributed to their confusion.

Areas of Agreement / Disagreement

There appears to be a general agreement among participants regarding the correctness of the example, but the original poster's specific confusion remains unresolved.

Contextual Notes

The discussion highlights a potential gap in the original poster's mathematical skills, particularly in relation to the application of finding the lowest common denominator, which may affect their understanding of the example.

Jon_H
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Hi, I'm taking a basic electricity course right now and I'm having trouble understanding a formula. The way they have their example makes no sense to me. Can anybody verify that their example is correct and explain a little bit for me? See attached file.
parallel.JPG
 
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It seems extremely straightforward. What is it exactly that you do not understand?
 
Hi Jon_H, Welcome to Physics Forums.

In future, please format your question using the template provided in the editing window when you begin a new thread.

The example given is correct. Can you be more specific about what in the example is not making sense to you?
 
Sorry guys, It's been a long time since I've done some real math and totally forgot about finding the lowest common denominator, which would give me the 15+10+6/3000. Brain fart...
 
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