ch26_p7 - 7. The cross-sectional area of wire is given by A...

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7. The cross-sectional area of wire is given by A = π r 2 , where r is its radius (half its thickness). The magnitude of the current density vector is JiAi r == // π 2 , so
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This note was uploaded on 01/25/2011 for the course PHYSICS 17029 taught by Professor Rebello,nobels during the Spring '10 term at Kansas State University.

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