Question: A current runs counter - clockwise along a circular wire segment of radius b beginning at point D and centered on point P , forming

A current runs counter-clockwise along a circular wire segment of radius b beginning at
point D and centered on point P , forming an arc of 120. The wire then bends and current
flows radially outward for a length a. Current then flows clockwise along a 120 arc of radius
a+b centered at P , returning to the same angular position as D, then moving radially inward
to meet up with D. Find the magnetic field produced at P

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