Question

difference bw resistance and resistivity

Answer 1

Resistance tells you the specific number of ohms that a phsyical piece of conductor has. Resistivity is the electrical property of a material. Theresistance of a specific length and cross sectional area piece of that material (e.g. like carbon, silver or copper) can be calculated using theresistivity property.

Answer 2

The resistance is the property of the material which obstructs the flow of current, whereas the resistivity gives the resistance of the material which has fixed dimension.

The resistance is the ratio of the length and cross-section area of the conductor, whereas the resistivity of the material is the ratio of the product of the resistance and area to the length of the conductor.

The resistance is represented by the symbol R whereas the resistivity is represented by the symbol ρ.

The SI unit of the resistance is ohm, and the SI unit of resistivity is ohm-meter

The resistance of the material depends on the length, cross-section and area of conductor whereas the resistivity depends on the nature and temperature of the material.