I know what resistivity of materials are like, and is given by the formula:
However what is the volume resistivity of materials like copper and aluminium for instance? How do we calculate the volume resistivity of materials, because this was confusing when I read the site:
Method of calculating eddy currents of a conductor, is this correct?
Where there is the answer given by Floris states the equation:
Where is given to be the volume resisitivity.
how do we measure the volume resistivity of a material for example aluminium?
what happens if the thickness of the material changes?