Figure (32-E1) shows a conductor of length \( l \) having a circular cross section. The radius o...

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Figure (32-E1) shows a conductor of length \( l \) having a circular cross section. The radius of cross section varies linearly from \( a \) to \( b \). The resistivity of the material is \( \rho \). Assuming that \( b-al \), find the resistance of the conductor.
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