A490 g sample of a conducting material is all that is


A49.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be11 multiplied by 10-8 · m, and the density is 7.31g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 .

(a) What length of wire is required?

m

(b) What must be the diameter of the wire?

mm

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Physics: A490 g sample of a conducting material is all that is
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