Using Kirchoff's junction rule for current from a battery.

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Homework Help Overview

The discussion revolves around applying Kirchhoff's junction rule to determine the current supplied by a battery in a circuit involving resistors. Participants are exploring the principles of circuit analysis and the implications of voltage drops across resistors.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants are questioning how to initiate the problem and what the junction rule entails. There are inquiries about calculating voltage drops across specific resistors and the application of series formulas to find current.

Discussion Status

The discussion is ongoing with participants seeking clarification on fundamental concepts and calculations. Some have attempted to apply formulas, while others are focused on understanding the definitions and principles involved.

Contextual Notes

There are references to attached images for equations, but the specifics of these images are not provided in the text. Participants are also reiterating the homework statement, indicating a potential lack of clarity in the initial problem setup.

rcmango
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Homework Statement



Use Kirchhoff's junction rule to calculate the current supplied by the battery.

Homework Equations



attached a pic.

The Attempt at a Solution



Where do we start?
 

Attachments

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    img4e1f2b5e3.gif
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How much does the voltage drop across each of the 2Ω & 5Ω resistors?
 
Okay, so using series formula, 27V/(2ohms+5ohms) = 3.8V?
 
First off, what does "Kirchhoff's Junction Rule" state?
 
rcmango said:

Homework Statement



Use Kirchhoff's junction rule to calculate the current supplied by the battery.

Homework Equations



attached a pic.

The Attempt at a Solution



Where do we start?

What gneill says !
 

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