calculate the resistance of 3.14 cc of copper when it is drawn into wire of diameter 0.2 mm specific resistance of copper is 1.7×10^-6 ohm cm
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A 0.500-meter length of wire with a cross-sectional area of 3.14 x 10 − 6 meters squared is found to have a resistance of 2.53 x 10 − 3 ohms.
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