How Does Surface Alteration Affect Copper Wire Conductance and Magnetic Fields?

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SUMMARY

The discussion focuses on the impact of surface alteration on the electrical conductance and magnetic fields of copper wire, particularly in the context of developing lightweight electric motors for cars. Key concepts include the skin effect, which describes how high-frequency alternating current travels along the surface of conductors, and the potential use of carbon nanotubes for improved electrical characteristics. The conversation highlights the need for further research into the effects of pitting and carving on copper wire, as well as the exploration of carbon nanotube production methods.

PREREQUISITES
  • Understanding of the skin effect in electrical conductors
  • Knowledge of copper wire properties and conductance
  • Familiarity with carbon nanotube characteristics and applications
  • Basic principles of brushless AC motors
NEXT STEPS
  • Research the effects of surface modifications on copper wire conductance
  • Investigate carbon nanotube production techniques and their feasibility
  • Explore the design and efficiency of brushless AC motors
  • Study the implications of high-frequency alternating current on conductor performance
USEFUL FOR

Electrical engineers, materials scientists, and automotive developers interested in optimizing electrical conductance and exploring advanced materials for electric motor applications.

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I have a question because of something I remembered while I was looking at some large copper windings for a generator.

I heard one of my teachers say that electricity moved along the surface of a copper wire. I am wondering how pitting a copper wire, making it sponge like, or carving parallel lines along the axis would effect the electrical conductance and magnetic fields created?? How about copper plating to something less dense?

The development I am looking for would be lightweight, electric motors for cars.
Ive heard carbon nanotubes have good electrical chracteristics ( can withstand a lot more heat per the gauge size ), but the production methods arent perfected.

I am just wondering if anyone has any ideas on this topic, and this material used for so many electric devices.
 
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Alternating Current of high frequency will travel along the outside of a conductor. It is called the skin effect. I'm not sure of any producers of carbon nanotubes, but you could try this link http://www.motionnet.com/cgi-bin/search.exe?string=nanotube

Brushless AC motors may be a good topic to start with.
 
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