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A bird sits on a high voltage power line with its feet 2.0 cm apart. The wire is made of aluminum, is 2.0 cm in diameter and carries a current of 150 A. What is the potential difference between the bird's feet?

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Solution Summary

The potential difference between a bird's feet sitting on a voltage power line is determined.

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The resistance R of a cylinder with cross sectional area A (not to be confused with current), length L and resistivity r is:

R = r*L / A

If a current I flows through this ...

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