What Causes Energy Loss in Cables?

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Homework Help Overview

The discussion revolves around understanding energy loss in cables, particularly in the context of transformers and circuit laws. The original poster expresses confusion regarding the validity of two potential answers related to this topic.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the application of Kirchhoff's circuit laws and the implications of wire length on resistance. There is a focus on clarifying misconceptions about current behavior in long leads.

Discussion Status

Some participants have provided insights into the relationship between wire length and resistance, and there is an acknowledgment of a misconception regarding current uniformity in the circuit. The discussion appears to be moving towards a clearer understanding of the concepts involved.

Contextual Notes

The original poster has referenced specific answer choices that are not detailed in the discussion, which may limit the context for some participants. Additionally, there is an indication of an exam preparation scenario, suggesting time constraints or specific curriculum guidelines may be influencing the discussion.

salihdemir
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Hello,

I am studying transformers now for the exam and I came across this question. It made a confusion in my mind. I took the photo of the question and put it into attachment.

The answers B and C looks very similar to each other and in my humble opinion both of them are true. I would be very happy if somebody explains which is true and why.

Thank you very much.

Salih
 

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Analyze C using Kirchhoff's circuit laws.
 
B is true. And the longer the wire is the bigger the resistance will be.
 
Thank you, I understand now, the current must be the same everywhere. I thought in the first that because the current is being used in the long leeds, it is decreasing. But I understand that this is a misconception.
 

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