Question

define resistivity ​

Answer 1

Answer:

Resistivity, electrical resistance of a conductor of unit cross-sectional area and unit length.

Answer 2

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Resistivity of the material is defined as the resistance offered to current flow by a conductor of unit length having unit area of cross-section. Unit is ohm-metre(Ωm).

ρ =(RA)/l where A=1 m²and l=1 m