Which of the following statements is INCORRECT?
1
There is a repulsive force when north poles (or south poles) of two magnets are brought close together.
2
If a bar magnet is broken into two halves, we get two similar bar magnets with stronger properties.
3
The earth behaves as a magnet with the magnetic field pointing approximately from the geographic south to the north.
4
When a bar magnet is freely suspended, it points in the north-south direction.