Impact of Adding Resistor on DC Circuit Current

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Homework Help Overview

The discussion revolves around a DC circuit with resistors connected in parallel and the effect of adding an additional resistor on the current from the battery.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the implications of adding a third resistor in parallel with two existing resistors, questioning how this affects the current in the battery and the potential difference across the resistors.

Discussion Status

Some participants are clarifying the configuration of the resistors and discussing the distribution of current, while others are referencing Kirchhoff's Current Law to further explore the relationships in the circuit. There is an ongoing examination of the assumptions regarding the circuit setup.

Contextual Notes

There is some confusion regarding the arrangement of the resistors, with a participant questioning whether the third resistor is in series rather than parallel. This indicates a need for clarity on the circuit configuration.

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Homework Statement




Let's say i have a circuit with two resistors connected in parallel with some source. Then another resistor is added in parallel with the first two so what happen to the current in the battery?

Homework Equations





The Attempt at a Solution


Should the current in the battery decrease since the potential is split across the three resistors?
 
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The third resistor is parallel to the other two parallel ones. The common points are connected to the terminals of the battery. So what about the potential difference across all resistors?

Did not you mean that the third resistor is connected in series with the other two parallel ones? ehild
 
No it's is what it is, first there where two in parallel then there was three. The potential difference should the same across all the resistors but current would be distributed, but I'm not sure how this would affect the current going through the battery since the current would meet back up and go through the battery anyways
 
What is the current through a resistor R when the potential difference is V across it?

What does Kirchhoff's Current Law state about the currents at a node? ehild
 

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