FAQ - Frequently Asked Questions

Where is the north pole on a magnet?

Identify magnetic poles with app

You can identify magnetic poles now quicker than ever. Simply download our Pole Detector app to your smartphone, point the phone at the desired side of the magnet, and you'll know which pole it is.
All the information about our app and the necessary download link can be found on our app info page .

Determine magnetic poles with everyday objects

The north pole of a magnet is the pole that - as long as the magnet can spin freely - points towards the north. You can demonstrate this by putting multiple magnets together and hanging them from a piece of string.
Since the opposite poles attract each other, it follows that the north pole of the world is actually a magnetic south pole - and this is indeed so.
Furthermore, you can determine the north pole of a magnet with the help of a compass: The needle end, which normally points towards the south, will be pulled by the north pole of the magnet.

Defining north and south pole

The north and south pole of a magnet is defined as follows: The magnetic field lines always run from the north to the south pole. Precisely: The field lines run vertically from the surface of the magnet's north pole and form a curve to the south pole until they get back vertically to the surface of the magnetic south pole. In the magnetic material itself the field lines run, however, back to the starting point on the north pole and, therefore, form a closed loop.

Positive pole and negative pole of a magnet

In connection with permanent magnets you often hear a reference to "positive pole" and "negative pole". The positive pole commonly refers to the north pole, because that's where the field lines start. Physically, however, this is not correct, because the magnetic field of a permanent magnet is a pure dipole field. This means there are no magnetic charges (electrons) that could be understood as a single pole, but only magnets with a north and a south pole. That's why there are no monopoles.