How to Draw a Magnetic Field Line

Instead of having separate arrows, we just combine them together to one big long line which we put our heads on along. If you've ever seen a representation of a magnet or anything like that, or if you've seen someone put iron filings around a magnet, well those are actually magnetic field lines,. But they look basically the same as electric field lines. The direction of the arrows does not tell you the direction the particle, a particle place at that point is going to move in. It tells you the direction of the force that's gonna be exerted.