Question

The figure below shows two current segments. The lower segment carries current *i*_{1} = 0.44 A and includes a circular arc with radius 6.8 cm, angle 180°, and center point *P*. The upper segment carries current *i*_{2} = 2*i*_{1} and includes a circular arc with radius 4.8 cm, angle 120°, and the same center point *P*. What are the **(a)** magnitude and **(b)** direction (into or otherwise of the page) of the net magnetic field for the indicated current directions? What are the **(c)** magnitude and **(d)** direction (into or otherwise of the page) of if *i*_{1} is reversed?

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