(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used.

What will be the diameter of the wire?

2. Relevant equations

A = V/l

R = sqrt(A/pi)

3. The attempt at a solution

For the volume I have gotten 1.12e-7 ( (1*10e-3)/8.92e3)=8.92e3 is the density of copper and it's 1 g of copper. and for the length, I have gotten 1.988.

For the diameter..

I divided the volume/length to get the area = 1.12e-7/1.988 = 5.63e-8

Then I used the formula r = sqrt(A/pi) = sqrt(5.63e-8/pi) = 1.34e-4

so diameter = 2 *r = 1.34e-4*2 =2.68e-4, but I keep getting it wrong! Can someone explain what I'm doing wrong??

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# Homework Help: Resistance and fabrication

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