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A long cylindrical non-magnetic conductor of radius Ro, whose axis coincides
with the 2-axis, carries a uniformly distributed current I, in the +î direction. A cylindrical
hole is now drilled out of the conductor, parallel to the axis, so that the cross section is on the
right. The centre of the hole is at x = a, and the radius is b.
Determine H inside the hole.
Ro

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