Question

define resistance and Resistivity and also give the relation between them

Answer 1

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here is your answer...
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The resistance of an object (i.e., a resistor ) depends on its shape and the material of which it is composed. Resistivity ρ is an intrinsic property of a material and directly proportional to the total resistance R, an extrinsic quantity that depends on the length and cross-sectional area of a resistor.
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Answer 2

refer this image hope it is helpful