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Physics, 11.12.2019 21:31 jameslinimk

Changing rho 2 a wire with a circular cross section has radius 0.01 mm and is lying along the z axis from z=0 to z=0.40 m. the wire is made of an alloy that varies with its length in such a way that the resistivity is given by rho=4z2 ω⋅m, for z in meters. what is the resistance of this wire?

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