| Electrical Conductivity |
Article Index for Electrical |
Shopping Conductivity |
Website Links For Electrical |
Information AboutElectrical Conductivity |
| CATEGORIES ABOUT ELECTRICAL CONDUCTIVITY | |
| fundamental physics concepts | |
| electrochemistry | |
| electrical phenomena | |
| physical quantity | |
| water quality indicators | |
|
:. It is also possible to have materials in which the conductivity is Anisotropic , in which case σ is a 3×3 Matrix (or more technically a rank-2 Tensor ) which is generally Symmetric . Conductivity is the Reciprocal ( Inverse ) of Electrical Resistivity , and has the SI units of Siemens per Metre (S·m-1). It is commonly represented by the Greek Letter σ , but κ or γ are also occasionally used. CLASSIFICATION OF MATERIALS BY CONDUCTIVITY
SOME TYPICAL ELECTRICAL CONDUCTIVITIES COMPLEX CONDUCTIVITY To analyse the conductivity of materials exposed to alternating electric fields, it is necessary to treat conductivity as a Complex Number (or as a matrix of complex numbers, in the case of anisotropic materials mentioned above) called the ''admittivity''. This method is used in applications such as Electrical Impedance Tomography , a type of industrial and Medical Imaging . Admittivity is the sum of a real component called the conductivity and an imaginary component called the susceptivity. {Link without Title} SEE ALSO
|
|
|