Question Detail

Let's examine each characteristic:A. Magnetic field lines go from the North pole to the South pole outside the magnet, and from South pole to North pole inside the magnet. So, 'they go from the South-pole to the North-pole of the magnet' as a general external characteristic is false.B. Magnetic field lines are indeed most concentrated at the poles, indicating the strongest field there. (True)C. Magnetic fields pass through most materials, including non-ferromagnetic ones like copper. (True)D. Magnetic field lines never cross one another, as that would imply two different directions for the magnetic field at a single point, which is impossible. (True)Therefore, the statement that is NOT true (the one they do NOT have) is A.