Homework Answers
Resistivity of Aluminum = 
= 2.65 x
10-8
m
Length of the wire = L = 37 m
Width of the wire = W = 1.2 cm = 1.2 x 10-2 m
Thickness of the wire = T = 3 mm = 3 x 10-3 m
Area of the wire = A
A = WT
A = (1.2x10-2)(3x10-3)
A = 3.6 x 10-5 m2
Resistance of the wire = R
R = 2.72 x 10-2
The resistance of the wire used = 2.72 x
10-2
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