hat is the electrical resistance of a copper wire that has a radius of 0.80 mm and a length of 2.0 m? The resistivity of copper is 1.72 x 10-8 Ω-m.   a. 9.0 mΩ   b. 21 mΩ   c. 25 mΩ   d. 13 mΩ   e. 17 mΩ

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