GEOLOGY

Detailed explanation-1: -If you place a compass near the north pole of a magnet, the north pole of the compass needle will be repelled and point away from the magnet. Thus, the magnetic field lines point away from the north pole of a magnet and toward its south pole.

Detailed explanation-2: -Because there are no monopolies in magnets, magnetic field lines are closed curves. A magnet always contains two poles (north pole and south pole), regardless of where it is sliced.

Detailed explanation-3: -Outside a bar magnet the magnetic field lines run from north to south pole and as they form a closed loop so inside they run from south to north pole.

Detailed explanation-4: -This diagram shows a bar magnet, and several curved lines going from the north pole to the south pole. The lines appear more concentrated as they get closer to the poles. The curved lines are the magnetic field lines which represent the strength, direction and shape of the magnetic field.

Detailed explanation-5: -Because magnetic field lines begin at the north pole and end at the south pole of the magnet, they are closed curves. Magnetic field lines propagate from the north pole outside the magnet’s body to the magnet’s body, and from the south pole to the north pole inside the magnet’s body, and are closed curves.