on which factor does the resistivity of conducting wire dependent
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Nature of material used
Rehan1102:
cross sectional of a conductor
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♠ What is Resistivity ??
♥Electrical resistivity is a fundamental property of a material that quantifies how strongly that material opposes the flow of electric current.
♠ Units of Resistivity
♥ The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented by the Greek letter ρ, rho.
♠ Formula of Resistivity
♥ ρ = R × A/l
where,
ρ = Resistivity of that material
R = Resistance of the material
A = Area of cross section for which its to be calculated
l = length for which it is to be calculated
♠ Factors on which Resistivity depends
♥ The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.
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