Pure carbon and graphite have the same resistivity?

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SUMMARY

Pure carbon and graphite do not have the same resistivity due to differences in their crystal structures. The resistivity of pure carbon is approximately 3.5 x 10-3 Ωm, while graphite, being an allotrope of carbon, exhibits varying resistivities depending on its orientation. It is essential to distinguish between resistivity and resistance, as they are related but distinct concepts. The discussion highlights the importance of understanding the properties of different carbon allotropes, including diamond, which has a significantly higher resistivity.

PREREQUISITES
  • Understanding of electrical resistivity and resistance
  • Knowledge of carbon allotropes, specifically graphite and diamond
  • Familiarity with measurement units, particularly Ωm and mΩ
  • Basic principles of crystal structure and its impact on material properties
NEXT STEPS
  • Research the resistivity of graphite in different orientations
  • Explore the electrical properties of various carbon allotropes
  • Learn about the relationship between resistance and resistivity in materials
  • Investigate applications of graphite in electrical engineering
USEFUL FOR

Materials scientists, electrical engineers, and students studying the properties of conductive materials will benefit from this discussion.

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I am just wondering if pure carbon and graphite have the same resistivity?

Resistivity for pure carbon = 3.5 x 10^-3Ωm:frown:
 
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I'd have to guess no on that one. Graphite is an allotrope of Carbon, so it's crystal structure is different to pure carbon, just like diamond which is another allotrope of cabon and which has a very high resistivity.

You'd have to do a search for graphite resistance and I think you should check a typo on your units mOhm, not Ohmm
 


No, Ωm is correct. This is resistivity, not resistance.

Since graphite is carbon, it's difficult to understand the question. Graphite does, however, have different resistivities in different orientations.
 


ahh, doh! but resisitivity is a function of the resistance, and hence, I would still assume that different allotropes of carbon have different resistances and resistivities.
 

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