4. The drawing shows a wire composed of three segments, AB, BC, and CD. There is a current of / = 2.8 A in the wire. There is also a magnetic field B (magnitude = 0.26 T) that is the same everywhere and points in the direction of the +z axis. The lengths of the wire segments are LAB = 1.1 m, Lac 0.55 m, and Lco = 0.55 m. Find the magnitude of the force that acts on each segment.

4. The drawing shows a wire composed of three segments, AB, BC, and CD. There is a current of / = 2.8 A in the wire. There is also a magnetic field B (magnitude = 0.26 T) that is the same everywhere and points in the direction of the +z axis. The lengths of the wire segments are LAB = 1.1 m, Lac 0.55 m, and Lco = 0.55 m. Find the magnitude of the force that acts on each segment.