What must be the diameter of a cylindrical 120-m long metal wire if its resistance is to be 6.0Ω ? The resistivity of this metal is 1.68 × 10-8 Ω • m. A) 0.065 mm B) 0.65 mm C) 0.65 cm D) 0.325 mm E) 0.0325 mm
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What must be the diameter of a cylindrical 120-m long metal wire if its
resistance is to be 6.0Ω ? The resistivity of this metal is 1.68 × 10-8 Ω • m.
A) 0.065 mm
B) 0.65 mm
C) 0.65 cm
D) 0.325 mm
E) 0.0325 mm
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