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Current Electricity: Resistance and Resistivity

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Part 1

A 42.9g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.07E-7 ohm* m and the density is 7.76g/ cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.87 ohm. What length is required?

Part 2

What must be the diameter of the wire?

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Solution Summary

The length and diameter of the wire made up of given mass of conducting material is calculated.

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