Pure carbon and graphite have the same resistivity?

In summary, there is a difference in resistivity between pure carbon and graphite due to their different crystal structures. While graphite is an allotrope of carbon, it has different resistivities in different orientations. This means that the resistivity for pure carbon and graphite would not be the same. However, it is important to note that resistivity is a function of resistance, so different allotropes of carbon may still have different resistances and resistivities.
  • #1
Mathysics
37
0
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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  • #2


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
 
  • #3


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.
 
  • #4


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.
 

Related to Pure carbon and graphite have the same resistivity?

1. What is resistivity?

Resistivity is a measure of a material's ability to resist the flow of electric current. It is measured in ohm-meters (Ωm).

2. Are pure carbon and graphite the same material?

No, pure carbon and graphite are not the same material. Pure carbon refers to an element on the periodic table, while graphite is a form of carbon that occurs naturally or can be synthesized.

3. Why do pure carbon and graphite have the same resistivity?

Pure carbon and graphite have the same resistivity because they both have a similar atomic structure, with delocalized electrons that allow for the flow of electric current. This makes them both good conductors of electricity.

4. Can pure carbon and graphite be used interchangeably in electrical circuits?

In most cases, pure carbon and graphite can be used interchangeably in electrical circuits due to their similar resistivity. However, pure carbon has a higher melting point and is more chemically stable, so it may be preferred in certain applications.

5. Are there any differences in the properties of pure carbon and graphite?

Yes, there are some differences in the properties of pure carbon and graphite. For example, pure carbon is a brittle solid, while graphite is a soft and slippery solid. Additionally, pure carbon has a higher density and is a better thermal conductor compared to graphite.

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