1.

Is there any difference between resistance and resistivity? If yes, tell the difference.

Answer» No.\xa0Resistance\xa0is the physical property\xa0of a\xa0substance because\xa0of\xa0which\xa0it\xa0opposes the flow\xa0of\xa0current i.e. electrons.\xa0Resistivity\xa0is the physical property\xa0of a\xa0particular substance which is having particular dimensions.\tSl. No.Differentiating PropertyResistanceResistivity1DefinitionResistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons.Resistivity is the physical property of a particular substance which is having particular dimensions.2ProportionalityResistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material.Resistivity is only proportional to the nature and temperature of the particular material.3SymbolRρ4FormulaR = V/I or, R = ρ(L/A)V = Voltage, I = Current, ρ = Resistivityρ = (R×A)/L R = Resistance, L= Length, A = Cross-sectional area5SI UnitsThe SI unit of resistance is OhmsThe SI unit of resistivity is Ohms-meter.\t


Discussion

No Comment Found