Derive S.I. unit of resistivity from its formula.
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Answer:
The electrical resistivity is the electrical resistance per unit length and per unit of cross-sectional area at a specified temperature. The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented bythe Greek letter ρ, rho.
Answer:
Explanation:
SI unit of resistivity is Ωm
derivation is as follows:
R=ρ l/A
ρ=RA/l
=Ω x m²/m
=Ωm