Question

6. The diameter of 12-gauge copper wire is 2.05mm, while the diameter of 14-gauge copper wire...

6. The diameter of 12-gauge copper wire is 2.05mm, while the diameter of 14-gauge copper wire is 1.63mm. Both are placed in two separate 100m extension cords. Assume the resistivity of copper to be 1.72×10-8Ω·m. (a) What is the difference in resistance between the two wire gauges for the distance the wire needs to be run? (b) If the extension cord is plugged into a 110V outlet, what is the difference in current supplied to the device plugged into the other end with different extension cords?

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