A freely suspended bar magnet comes to rest in an approximately north-south direction.
This shows that the:
Bar magnet is charged.
Earth has a charge carrier.
Earth has a magnetic field.
Earth can be used as a compass.
A soft magnetic material is one which:
Cannot be easily magnetized and demagnetized.
Cannot be easily magnetized but not easily demagnetized.
Can be easily magnetized but not easily demagnetized.
Can be easily magnetized and easily demagnetized.
