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In a cylindrical conductor of radius 2mm, the current density varies with the distance from
the axis according to J = 1000 e-400 r Am?, the total current (I) is--------
5.51 mA
7.51 mA
8.51 mA
O 6.51 mA

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What is the current in a wire of radius R = 2.83 mm if the magnitude of the current density is given by (a) J, - Jor/R and (b) J, = Jo(1-r/R) in which r is the radial distance and Jo = 7.58 x 104 A/m2? (c) Which function maximizes the current density near the wire's surface? (a) Number i Units (b) Number i Units (c)
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