The force on a current carrying conductor in a magnetic field is greatest when the
Answer Details
The force on a current-carrying conductor in a magnetic field is given by the formula F = BIL sinθ, where B is the magnetic field strength, I is the current, L is the length of the conductor and θ is the angle between the direction of the current and the magnetic field. The force is greatest when sinθ is at its maximum value of 1, which occurs when the conductor is perpendicular (i.e., at a right angle) to the magnetic field. Therefore, the answer is "conductor is at right angle with the field".