What does a conductivity test measure?

A conductivity test specifically measures the ability of a material to conduct electricity. This ability is influenced by the material's atomic structure and the presence of charged particles, such as ions or free electrons, that can move under an electric field. Conductivity is a critical property in various applications, including electrical installations, material selection for circuit components, and assessing the quality of different substances, such as metals, liquids, or even soils.

When performing a conductivity test, measurements can indicate how well a material can conduct electricity, which is essential for determining its suitability for electrical applications. If a material has high conductivity, it will allow electric current to flow easily, which is a key factor in designing efficient electrical systems.

In contrast, the other options focus on different aspects or characteristics unrelated to the direct measure of how well a material conducts electricity.