A conducting bar of length l is placed on a frictionless plane tilted at an angle θ from the horizontal.A uniform magnetic field is applied to the vertical direction.To prevent the bar from sliding down, a voltage source is connected to the ends of the bar with current flowing through.Determine the magnitude and direction of the current such that the bar will remain stationary.
I think F=I(l×B) is relevant here.As besides B=B k-cap. But I am not sure I am on the right track. Could anyone please tell me how to proceed?I was trying to balance force F by F=mg sin θ (k-cap)= I(l×B). But it seems to make no sense.