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Expression for Electrical Conductivity Video Lecture - Civil Engineering (CE)
FAQs on Expression for Electrical Conductivity Video Lecture - Civil Engineering (CE)
| 1. What is electrical conductivity? |  |
Ans. Electrical conductivity is a measure of a material's ability to conduct electric current. It is the property that determines how well a material can transmit electrical energy.
| 2. How is electrical conductivity measured? | |
Ans. Electrical conductivity is typically measured using a device called a conductivity meter, which measures the conductance of a material. The conductance is then converted into electrical conductivity by taking into account the dimensions of the sample.
| 3. What factors affect the electrical conductivity of a material? | |
Ans. Several factors can affect the electrical conductivity of a material, including the type and concentration of impurities present, the temperature, and the structure of the material. For example, metals generally have high electrical conductivity due to the presence of free electrons.
| 4. What are some examples of highly conductive materials? | |
Ans. Some examples of highly conductive materials include metals such as copper, silver, and aluminum. These metals have a large number of free electrons that can easily move and carry electric current.
| 5. How does electrical conductivity relate to electrical resistivity? | |
Ans. Electrical resistivity is the reciprocal of electrical conductivity. In other words, it is a measure of how strongly a material resists the flow of electric current. Materials with high electrical conductivity have low resistivity, while materials with low conductivity have high resistivity.
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