00:01
All right, so for point a, this is where you have the greatest feel strength because the field lines are closest together.
00:12
So when you draw your magnetic field vector, you want the length of the vector arrow be the longest relative to the other points.
00:24
And also notice that this point, the vector will be slightly to.
00:31
To the north, so slightly northeast, just ever so slightly, because remember that magnetic field vector is going to be tangent to the magnetic field line.
00:43
So based on where the field line is pointing, you want it to be just slightly north of east.
00:53
So that's your a, and notice how long i've made it so that there is room for me to draw the other vectors.
00:59
Now if you look at point b, notice that in order to draw a vector tangent to the field line, it has to go in the southeast direction.
01:09
And because it is at a point where the field lines are a little bit further apart, you want the field strength to be smaller relative to a, which means the vector arrow length must be a little shorter...