The current-density magnitude in a certain circular wire is J = (2.75 x 1010 A/m4) r2, where

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The current-density magnitude in a certain circular wire is J = (2.75 x 1010 A/m4) r2, where r is the radial distance out to the wire's radius of 3.00 mm. The potential applied to the wire (end to end) is 60.0 V. How much energy is converted to thermal energy in 1.00 h?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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