Question

difference between resistance and reactivity​

Answer 1

Resistivity is the microscopic property and resistance is the macroscopic property. Resistivity is a property of the material, resistance depends on the size and shape.

Resistivity describes how many conducting particles there are per unit volume, how much charge they carry and how fast they move in an electric field.

Resistance describes the relationship between current and potential (voltage) in a circuit. It depends on resistivity but also on the length and cross sectional area of the material in question (so it depends on the total number of electrons and how long of a distance they need to traverse

Answer 2

One of the major difference betweenthe resistance and the resistivity ofthe material is that the resistanceopposes the flow of free electrons whereas the resistivity is the propertyof the material which defines theresistance of the material having specific dimension