If a mile of 24-gauge copper wire has a resistance of 0.14 k and the resistivity of copper is 1.7 *10 - 8 . m,what is the diameter of the wire? (1 mile = 1.6 km)
A) 0.40 mm
B) 0.50 mm
C) 0.63 mm
D) 0.80 mm
E) 0.25 mm
Correct Answer:
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