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A 2.0 mm -diameter, 50 cm -long copper wire carries a 4.5 A current. What is...

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Physics

A 2.0 mm -diameter, 50 cm -long copper wire carries a 4.5 Acurrent. What is the potential difference between the ends of thewire?

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4.4 Ratings (748 Votes)
First find Resistance R l AA 4 Diameter2 Diameter 20    See Answer
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