A conductor of length \(l\) has a uniform cross section.

The radius of cross section varies linearly from \(a\) to \(b\).The resistivity of the material is \(\rho\).

Find the resistance of the conductor across its ends **in Ohms**.

**Details and Assumptions**

- \(\rho\)=\(6.28\times\)\(10^{-8}\)\(\Omega\)m
- \(l\) (length of conductor) =10 cm
- \(a\)=2 cm and \(b\)=5 cm

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