freezx said:i want answer for this question :
ُُEXPLAIN the following with EXAMPLES:
1- conductors
2- stress-strain relationship
3-insulaters
4- independent and dependent variables
Conductors are materials that allow electricity to flow through them easily, while insulators are materials that do not allow electricity to flow through them easily.
Conductors are able to withstand stress and strain better than insulators, as they have more free electrons that can move and carry the electrical current. Insulators have fewer free electrons and therefore cannot handle stress and strain as well.
The relationship between stress, strain, and conductivity is that as stress and strain increase, the conductivity of a material also increases. This is because stress and strain cause the free electrons in conductors to move more easily, allowing for better conductivity.
Variables such as temperature, pressure, and impurities can affect the conductivity of materials. For example, an increase in temperature can cause an increase in the movement of free electrons, leading to higher conductivity. On the other hand, impurities can disrupt the flow of electrons and decrease conductivity.
Conductivity is typically measured using a device called a conductivity meter, which measures the flow of electrical current through a material. The unit of measurement for conductivity is siemens per meter (S/m).