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Link to this page: | http://core.materials.ac.uk/search/detail.php?id=3192 |
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Resource type: | Equation |
Description: | Material property describing how well a material can conduct electricity. Materials with high resistivity (low conductivity) are known as insulators. Materials with low resistivity are conductors. This is generally a good indication of a material's ability to conduct heat, also. Can be effected by environmental (thermodynamic) factors.
TeX format: \rho = {1\over\sigma} = R{A\over L} ρ {\rho} = Resistivity (&Ohm;m) {\Omega m}σ {\sigma} = Conductivity (Sm-1) {\Omega_{-1}} R {R} = Resistance (Ω) {\Omega} A {A} = Cross-sectional area (m2) {m^2} L {L} = Length of sample (m) {m} Ne {N_e} = Density of free electrons (m-3) {m^{-3}} e {e} = Electron charge (C) {C} μe {/mu_e} = Electron mobility (m2V-1s-1) {m^2V^{-1}s^{-1}} |
Keywords: | resistivity • conductivity • electrical • material properties • current • electron mobility • charge |
Categories: | Science approaches Science approaches > Structure, bonding & defects > Atomic structure Applications > Electronics Product Forms > Long > Wire Properties > Electrical, magnetic & optical > Conductivity Properties > Electrical, magnetic & optical > Resistivity |
Created by: | The University of Liverpool | License: | This resource is released under the Creative Commons Attribution license (2.0 UK: England & Wales). View the full legal code here. |
Date created: | 08 July 2010 |
Date added: | 04 August 2010 |
Package: | |
Resource ID: | 3192 |