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The resistivity of gold is 2.44 10-8 m at a temperature of 20C....

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The resistivity of gold is 2.44 10-8 m at a temperature of 20C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 480 mA. The power dissipated in the wire is closest to: B) 0.31 mW C) 0.077 mW D) 0.19 mW A) 0.14 mW

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