Q. Consider the following properties of magnetic lines of force:

1. They are closed continuous curves
2. They travel from north to south outside the magnet and from south to north inside the magnet
3. They bend along the length of the magnet
4. They mutually repel each other
5. They never intersect each other

Which of the above statements is / are correct?
Answer: 1, 2, 3, 4 and 5
Notes: All five statements correctly describe the properties of magnetic lines of force. They form closed continuous curves and travel outside from north to south, and inside from south to north. They bend along the length of the magnet, mutually repel, and never intersect each other, which are fundamental characteristics observed in magnetic field lines.