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Question
Distinguish between the resistivity and conductivity of a conductor.
Solution
| Resistivity | Conductivity |
| 1. It is the resistance of a conductor of unit length and unit area of cross-section. | 1. It is the reciprocal of the electrical resistivity of a material. |
| 2. Its unit is ohm metre | 2. Its unit is ohm-1 meter-1 or mho metre-1 |
| 3. It is the measure of the resisting power of a specified material to the passage of an electric current. | 3. It is the measure of its ability to pass the current through it. |
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