What is the difference between conductivity and conductance, and how do they relate to each other in terms of measuring the ability of a material to conduct electricity?

Conductivity is a material's ability to conduct electricity, while conductance is the measure of how well a material can conduct electricity. Conductivity is a property of the material itself, while conductance takes into account the material's dimensions. Conductivity is measured in siemens per meter (S/m), while conductance is measured in siemens (S). Conductivity and conductance are related in that conductivity is the intrinsic property of a material, while conductance is the actual measurement of how well the material conducts electricity.