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Rushikesh Sarda
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Today while reading a book i read that conductance of a metal depends on its density. But it is also dependent on its resistivity. Does that mean that resistivity and conductivity are proportional to each other?
nasu said:Conductivity is the inverse of resistivity. So they are inverse proportional. But this has nothing to do with density. It's just the definition.
I am afraid you may be quoting the book incorrectly, too. Where did you read this?
Density is the measure of how much mass is contained within a given volume. Resistivity, also known as electrical resistivity, is the measure of a material's ability to resist the flow of electric current.
No, density and resistivity are not directly proportional to each other. While both are physical properties of a material, they are not dependent on each other.
Density and resistivity are indirectly related to each other through the concept of specific resistance, which is the resistivity of a material divided by its density. This means that materials with higher densities tend to have higher resistivities.
Yes, both density and resistivity can change depending on various factors such as temperature, pressure, and composition of the material. For example, as temperature increases, resistivity tends to increase while density decreases.
While there is no direct relationship between density and resistivity, there are mathematical equations that can be used to calculate the specific resistance or resistivity of a material. These equations take into account the material's density, along with other factors such as temperature and composition.