Which statements about magnetic field lines are correct? Select all correct answers.
- Magnetic field lines show the field around bar magnets and permanent magnets only.
- Magnetic field lines are used to help visualize the magnetic field.
- Magnetic field lines have a particular pattern regardless of their source.
- Magnetic field lines have the direction that a small compass points when placed at a location.
- Magnetic field lines begin on a north pole and terminate on a south pole outside a magnet and can stop in space.
- Magnetic field lines begin on a north pole and terminate on a south pole outside a magnet.