Question

resistance and resistivity

Answer 1

Resistance (R) is a measure of how much a material prevents the flow of current and is measured in Ohms (Ω)

Resistivity is a property of a material (not something that can be changed unless the material itself is changed).  Therefore, it plays the largest role in determining whether or not the material is a good conductor.  

Answer 2

The actuall definition of resistance is property of wire from which the potential is decreased during flow of current is resist resistance of wire

Resistivity is defined as if the length and crosssectional area of wire is taken as unit or 1 then the resistance of wire is called resistivity it is different for different .. Wires or other