The current density across a cylindrical conductor of radius r varies in magnitude according to the equation j = j0r/r where r is the distance from the central axis. thus, the current density is a maximum j0 at the cylinder's surface and decreases linearly to zero at the axis. calculate the current in terms of j0 and the conductor's cross-sectional area a = πr2 .
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The current density across a cylindrical conductor of radius r varies in magnitude according to the...
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