Two current sources in series with a resistor.

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Discussion Overview

The discussion revolves around a circuit problem involving two current sources in series with a resistor. Participants are analyzing the implications of the current sources opposing each other and the validity of the question presented in the accompanying image.

Discussion Character

  • Debate/contested, Technical explanation

Main Points Raised

  • One participant notes that the current sources oppose each other, suggesting that one may be an AC source and the other a DC source.
  • Another participant questions the validity of the equation i = 2i1 = -5, expressing confusion about the nature of the current sources.
  • A different participant argues that a 5 amp current source must have 5 amps flowing through it, implying that if the currents differ, the sources cannot be ideal.
  • One participant agrees with the confusion and reiterates the equation i = 2i1 = -5, indicating a shared sentiment about the contradiction in the question.
  • Another participant suggests that the question may lack necessary context, implying that important details are missing from the image.

Areas of Agreement / Disagreement

Participants express disagreement regarding the interpretation of the current sources and the validity of the question. There is no consensus on how to approach the problem or the correctness of the proposed equations.

Contextual Notes

Participants note potential limitations in the problem due to missing context and assumptions about the current sources, which may affect the analysis.

nik235
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hello, forum members. I'm new so pardon if any error.

IS the question in this pic solved correctly.
 

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The pic shows a single loop with two current sources and a resistor.
The current sources oppose each other - one (2i1) may be intended as an AC current source, while the other (5A) is a DC current source.

You can check the working yourself by applying Kirkoffs laws.
 
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isn't

i = 2i1 = -5
 
This question doesn't make sense to me. A 5 amp current source has 5 amps going through it, or it wouldn't be a 5 amp current source. The same goes for the other current source. If the currents aren't equal, one or both will deviate significantly from being an ideal current source, and you'd have to know more details of the current sources to see what will happen.
 
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@willem2, I too find it contradicting, i just neglected the question, as per me, it should be i = 2i1 = -5
 
I don't think the entire question is there ... it seems to be assuming a context not on the pictured page.
 

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