I don\'t need the work, i just need the answer. An aluminum wire has the same re

Question

I don't need the work, i just need the answer. An aluminum wire has the same resistance as a copper wire ofthe same length. Find the ratio of the aluminum wire's diameter tothe copper wire's diameter. (The resistivities of aluminum andcopper are 2.82 x 10-8 -m and1.72 x 10-8 -m,respectively.)
I don't need the work, i just need the answer. An aluminum wire has the same resistance as a copper wire ofthe same length. Find the ratio of the aluminum wire's diameter tothe copper wire's diameter. (The resistivities of aluminum andcopper are 2.82 x 10-8 -m and1.72 x 10-8 -m,respectively.)

Explanation / Answer

The answer is, "1.28" r = /r Using that equation for each metal r = 1.89x10-4 for Al r = 1.48x10-4 for Ag to get the answer you do this "Al/Ag" This willgive you 1.28

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