A finite current-carrying wire lies on the y-axis as shown below. Thecurrent has a constant magnitude of I. The wire goes from y =d toy = c . Point P lies on the x-axis at æ = -b. a.What is the direction of the magnetic field at point P?b.Use the Biot-Savart Law to calculate the magnitude of themagnetic field at point P. You must show how you set up theHol dl xî based on the diagram, show how youdB4n r2solved for the cross product, and show how you did the integral. Nocredit will be given without showing work. Must showdi, î, di x î. The angle 0 must appear on the diagram. The diand f must appear on the diagram and be consistent with theformulas you use.

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A finite current-carrying wire lies on the y-axis as shown below. The current has a constant magnitude of I. The wire goes from y = d to y =c. Point P lies on the x-axis at az= エ b.