Final answer:
To find the magnitude of the force on each wire segment, use the equation F = I * B * L * sin(θ) with the given values of current, magnetic field, and wire segment length.
Step-by-step explanation:
To find the magnitude of the force that acts on each segment of the wire, we can use the equation F = I * B * L * sin(θ), where F is the force, I is the current, B is the magnetic field, L is the length of the wire segment, and θ is the angle between the current direction and the magnetic field direction.
For segment AB, the force is given by F = 2.8 A * 0.26 T * 1.1 m * sin(0°).
For segment BC and CD, the force is given by F = 2.8 A * 0.26 T * 0.55 m * sin(180°).