Wikidata:Property proposal/electrical resistivity
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electrical resistivity
[edit]Originally proposed at Wikidata:Property proposal/Natural science
| Description | quantifies how strongly a given material opposes the flow of electric current |
|---|---|
| Represents | electrical resistivity (Q108193) |
| Data type | Quantity |
| Template parameter | This proprety request is part of the project of creating an infobox for materials. |
| Domain | Physical and mechanical property of material (Q214609). |
| Allowed values | Any number. Qualifiers : under pressure (P2077), determination method or standard (P459), temperature (P2076), microstructure (P5589), Work hardening strain, Heat treating |
| Allowed units | ohm metre (Q1441459), Ω⋅mm2/m, μΩ·cm |
| Example 1 | copper (Q753) → 1.68×10−8 ohm metre (Q1441459) |
| Example 2 | drinking water (Q7892) → 20 to 2000 ohm metre (Q1441459) |
| Example 3 | polytetrafluoroethylene (Q143252) → 1023 to 1025 ohm metre (Q1441459) |
| Source | w:Electrical resistivity and conductivity |
| Planned use | Creating an infobox for materials |
| See also | electrical conductivity (P2055) (inverse) |
Motivation
This is part of the project of creating an infobox for materials. --Thibdx (talk) 09:31, 10 August 2018 (UTC)
Discussion
Support David (talk) 08:59, 11 August 2018 (UTC)
Comment @Thibdx: Can you please comment on why you feel we need this in addition to electrical conductivity (P2055)? ArthurPSmith (talk) 13:58, 13 August 2018 (UTC)
- Hi. Many datasheets give the resistivity and not the conductivity. This depends if the material is aimed at conducting or isolating. I don't know if we should ask the users to make the conversion between the 2 values. Many contributors would just know well the set of 15 materials properties they are using in them job and only copy the others. It is very probable that 90% of the mechanical engineers not dealing with electric problems in them jobs just don't even know that they could make the conversion. -- Thibdx (talk) 14:38, 13 August 2018 (UTC)
- Support Ok, that makes sense. By the way, they are "inverse" properties in the sense of one being the numeric inverse of the other, not "inverse" in the bidirectional sense we often see in wikidata. In this case I agree there's some reason to have it. Thanks. ArthurPSmith (talk) 18:01, 13 August 2018 (UTC)
- Hi. Many datasheets give the resistivity and not the conductivity. This depends if the material is aimed at conducting or isolating. I don't know if we should ask the users to make the conversion between the 2 values. Many contributors would just know well the set of 15 materials properties they are using in them job and only copy the others. It is very probable that 90% of the mechanical engineers not dealing with electric problems in them jobs just don't even know that they could make the conversion. -- Thibdx (talk) 14:38, 13 August 2018 (UTC)
@Thibdx, ديفيد عادل وهبة خليل 2, ArthurPSmith: 
Done: electrical resistivity (P5679). − Pintoch (talk) 09:56, 19 August 2018 (UTC)