What is the difference between resistance and resistivity ?

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What is the difference between resistance and resistivity ??

I have studied that the electric resistance is directly proportional to length of material and inversely proportional to area of cross section . In this resistivity becomes constant and determines conductivity by sign "rho" . What is it exactly ??
 
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It is the property of the material that will define the resistance once the shape is known.

If you make the same shape out of another material (with different rho) the resistance will be different.
 


Antiphon said:
It is the property of the material that will define the resistance once the shape is known.

If you make the same shape out of another material (with different rho) the resistance will be different.

That is more like it .

Please do add me and can you teach me about it more if you are free ??
 
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