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A hollow, thick-walled, conducting cylinder carries a current of 11.3 A and has an inner radius r, =r and outer radius r. = 3r/2, where r = 4.60 mm. Determine the magnitude of the magnetic field at the following
distances from the center of the cylinder.
(a)
= r/2
T
(b)
= 5r/4
T
(c)
r= 2r

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