Question

In which direction do magnetic field lines travel outside a bar magnet?

पर्याय

• They emerge from both poles and never return.

• They travel only inside the magnet.

• They emerge from the north pole and enter the south pole.

• They emerge from the south pole and enter the north pole.

Answer 1

Outside a bar magnet, magnetic field lines emerge from the north pole. They travel around the magnet and enter the south pole.