1. The problem statement, all variables and given/known data A straight piece of conducting wire with mass M and length L is placed on a frictionless incline tilted at an angle theta from the horizontal. There is a uniform, vertical magnetic field vecB at all points (produced by an arrangement of magnets not shown in the figure). To keep the wire from sliding down the incline, a voltage source is attached to the ends of the wire. When just the right amount of current flows through the wire, the wire remains at rest. Determine the magnitude of the current in the wire that will cause the wire to remain at rest. Express your answer in terms of the variables M, theta, L, B, and appropriate constants. Determine the direction of the current in the wire that will cause the wire to remain at rest. In addition viewing the wire from its left-hand end, show in a free-body diagram all the forces that act on the wire. 2. Relevant equations dF = Idl ×B or possible the bio-stavart law.. i'm not sure 3. The attempt at a solution the current must be directed from the right to the left i think? other than that, unsure how to start, just chasing a hint or beginning to work from. thanks heaps.