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Physics, 16.03.2020 21:11, jsharma57p7enrw
The magnitude J(r) of the current density in a certain cylindrical wire is given as a function of radial distance from the center of the wireās cross section as J(r) ! Br, where r is in meters, J is in amperes per square meter, and B ! 2.00 $ 105 A/m3.This function applies out to the wireās radius of 2.00 mm. How much current is contained within the width of a thin ring concentric with the wire if the ring has a radial width of 10.0 mm and is at a radial distance of 1.20 mm?
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