Question

Where is the south pole of the bar magnet based on the magnetic fields lines showns?

Answer 1

In the usual notation, the vectors (or the arrows) come from the North Pole and end at the South Pole.

In your image you can see that the arrows emerge on the right side and end on the left side, this means that the south pole on this magnet is on the left side, so the correct answer is B.

Hope this helps!