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In the figure, two circular arcs have radii a = 14.1 cm and b = 10.2...

In the figure, two circular arcs have radii a = 14.1 cm and b = 10.2 cm, subtend angle θ = 75.0°, carry current i = 0.421 A, and share the same center of curvature P. What are the (a) magnitude and (b) direction (into or out of the page) of the net magnetic field at P?

The figure shows a diagram of a closed circuit. The diagram consists of two arcs that come from two different circles that have the same center. The center is labeled P. The arcs are connected by the part of the larger radii that is between each of the circles. The subtend angle is theta. The length of the larger radius is a. The length of the smaller radius is b. An arrow labeled i points from the smaller arc toward the larger arc on the left side, and an arrow labeled i points from the larger arc toward the smaller arc on the right side.

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