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A very long straight wire carries current 28 A. In the middle of the wire a right-angle bend is made. The bend forms an arc of a circle of radius 22 cm, as show. Determine the magnetic field at the center of the
arc.
What is the direction of the magnetic field?
O left
O into the plane of the computer screen
O down
out of the plane of the computer screen
O down and to the left
O right
B =

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