A wire in the shape of frustum, have circular cross-sections of radii – InterviewSolution

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1.	A wire in the shape of frustum, have circular cross-sections of radii r1=2.5 cm and r2=4 cm. The resistivity of the material of the wire is ρ=2×10−3 Ωm. Calculate the resistance of the wire, if the length of the wire is 10 cm.
Answer» A wire in the shape of frustum, have circular cross-sections of radii $r_{1} = 2.5 cm$ and $r_{2} = 4 cm$ . The resistivity of the material of the wire is $ρ = 2 \times 10^{- 3} Ω m$ . Calculate the resistance of the wire, if the length of the wire is $10 cm$ .

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