DC Motor Efficiency: Why Does Efficiency Plot Look Like Parabola?

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Homework Help Overview

The discussion revolves around the efficiency of DC motors, specifically focusing on the shape of the efficiency plot, which is described as resembling a parabola. Participants are exploring the underlying structure and factors that contribute to this characteristic.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants are questioning the reasons behind the parabolic shape of the efficiency plot and what factors influence DC motor efficiency. There are inquiries about the structure and components affecting this efficiency.

Discussion Status

Some participants have shared their experiences with online searches regarding DC motor efficiency, indicating that they have found useful information. There is an acknowledgment of the significance of air resistance losses at higher speeds, suggesting a productive direction in the discussion.

Contextual Notes

Participants are referencing their own research efforts and findings, which may imply a need for further exploration of specific factors affecting efficiency, such as air resistance and other losses.

George444fg
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So I am doing an experiement about DC motors, and I would like to know why the efficiency plot looks like a parabola. What is the structure behind that. Thank you in advance
 
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George444fg said:
So I am doing an experiement about DC motors, and I would like to know why the efficiency plot looks like a parabola. What is the structure behind that. Thank you in advance
What have you found so far in your searching? I did a Google search on what affects dc motor efficiency and got lots of good hits. Have you tried that search yet? :smile:
 
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berkeman said:
What have you found so far in your searching? I did a Google search on what affects dc motor efficiency and got lots of good hits. Have you tried that search yet? :smile:
To be honest I did it simultaneously, and obviously at the end I found out what I was seeking . Thank you
 
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Great! Yeah, there's lots of good info out there. I didn't realize that air resistance losses were significant at higher motor speeds...
 

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