What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?
Added by Katherine A.
Step 1
Given diameter, D = 2.053 mm = 2.053 x 10^-3 m Radius, r = D/2 = 2.053 x 10^-3 / 2 = 1.0265 x 10^-3 m Area, A = πr^2 = π(1.0265 x 10^-3)^2 = 3.313 x 10^-6 m^2 Show more…
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