The magnetic field lines of a bar magnet spread out from the north end to the south end. south end to the north end. edges to the center. center to the edges.

Answer;

the north end to the south end.

Explanation;Magnetic field lines from a bar magnet form lines that are closed. The direction of magnetic field is taken to be outward from the North pole of the magnet and in to the South pole of the magnet. A magnetic field refers to  the area surrounding a magnet where a force is exerted on certain objects. These lines are spread out of the north end of the magnet.The magnetic field lines resemble a bubble.

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