Calculate the electric resistance of a gold wire 1.2 mm in diameter and 17 m long if its resistivity is 2.26×10^-8 Ω·m.
Added by Pedro R.
Step 1
Given diameter = 1.2 mm = 1.2 x 10^-3 m Radius = diameter/2 = 0.6 x 10^-3 m Cross-sectional area = πr^2 = π(0.6 x 10^-3)^2 = 3.14 x 0.36 x 10^-6 = 1.13 x 10^-6 m^2 Show more…
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