List the properties of magnetic lines of force. [3 MARKS]
Each point: 1 Mark
1. Magnetic field lines follow the direction from the north pole to the south pole (outside a magnet). Magnetic field lines do not cross one another.
2. Closer the field lines; stronger is the magnetic field and vice-versa is also true.
3. Magnetic field lines are closer near the poles, which shows greater strength of magnetic field near the poles.