Use the fact that the resistance of a wire carrying an electrical current is directly proportional to its length and inversely proportional to its cross-sectional area. A 10-foot piece of copper wire produces a resistance of 0.2 ohm. Use the constant of proportionality k = 0.000833 to find the diameter of the wire. (Round the answer up to three decimal places.) O 0.38 ft O 0.73 ft 0.48 ft O 0.58 ft 0.23 ft

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