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A 45.6 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.30×10-7 ?m and the density is 6.38 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.27 ?. a) What length is required? b) What will be the diameter of the wire?

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