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#4 a.) Resitivity and Resistance A homogeneous metal wire is comprised of a conducting material witha resistivity of 1.55 x 10-7 ? . m. If the wire has a radius of 0.250 millimeters and is 1.25 meters in length, what is the resistance of the wire? A. 0.754 ? B. 0.988 ? C. 1.21 ? D. 1.50 ? b.) Resistivity and Conductivity In 4a, what is the conductivity of the wire? A, 3.25 × 106 ?-1m-1 B. 4.62 x 106 0-1m-1 C. 5.79 x 106 ?-1m-1 D. 6.45 x 106 0-1m-1

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science   Advanced-Physics   
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