Question

difference between resistance & resistivity​

Answer 1

Answer:

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.

Answer 2

Answer:

⭕️Resistivity is also known as electrical resistivity.

⭕️Its a property that quantities how strongly a material opposes the flow of electric current.

⭕️A low resistivity indicates a material that allows the flow of electric current.

⭕️Its SI unit is ohm (symbol - Ω).

⭕️It's named after German physicist Georg Simon Ohm.

⭕️Resistivity of a conductor is a property of the material of the conductor.

⭕️ Unit of resistivity is Ohm meter, Ω m.

⭕️Resistivity of the material of the conductor changes with temperature.

⭕️Resistivity of copper is 1.7 × 10 -8 Ω m at room temperature.

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