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An infinitely long wire carrying current, I, is bent in the middle
so that the horizontal and vertical sections are connected by a
circular arc with radius, R, as shown in the figure.
Write a symbolic expression for the strength of the magnetic
field produced at the center point, P, in terms of I, R, and
constants (all as needed), and indicate its direction.
B =
into the page
I
D
R
I

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