You are working at a company that manufactures electri- cal wire. Gold is the most ductile of all metals: it can be stretched into incredibly long, thin wires. The company has developed a new technique that will stretch 1.00 g of gold into a wire of length L 5 2.40 km and uniform diameter. Your supervisor gives you the task of determining the resis- tance of such a wire at 20.08C.(the density of gold is 19.3 ✕ 103 kg/m3.)

Explanation:

We know that the relation between volume and density is as follows.

      Volume =

So,       V =

               =

Now, we will calculate the area as follows.

      Area =

               =

               =

Formula to calculate the resistance is as follows.

         R =

             =

             =

Thus, we can conclude that the resistance of given wire is .

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explanation:

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