1. The problem statement, all variables and given/known data the current is i, the circuit is in a uniform magnetic field B normal to the plane of the circuit as indicated Attached is the circuit 2. Relevant equations Get the forces acting on each of their sides. Direction and data module for the following: L = 10cm R = 10cm I = 5A B = 3.4mT 3. The attempt at a solution The force for the semi circunference is easy F=I.l.B = IπRB But I don't agree with a teammate, about the rest. The bottom of the rectangle should be F=IlB = I2RB The sides of the rectangle oppose each other so the force should be 0?