00:01
So in this question, we have two permanent magnets that are side by side.
00:11
So let me go ahead and draw that really quickly.
00:27
And the goal is to draw the magnetic field lines coming out of these two permanent magnets.
00:34
And notice that the north pole is next to the other north pole and same with the south poles.
00:40
So you've got to remember a couple of things.
00:44
Magnetic field lines always go from the north pole to the south pole, and it actually forms a closed loop, even though sometimes you may not show that.
00:56
But just remember that magnetic field lines, they never end.
01:01
They're always closed loops.
01:03
Also, remember that magnetic field lines cannot cross each other.
01:08
So the magnetic field is unique at every point in space.
01:12
And this is exactly like the electric field lines property.
01:17
So keeping those points in mind, let's try to draw the magnetic field line diagram for a pair of permanent magnets that are positioned like so.
01:31
I'm first going to draw a loop that goes from north to the south pole, and i'm just going to try to make everything symmetrical and of course i can have one that is even closer.
01:53
And remember that when the lines are closer together, that is supposed to represent greater field strength.
02:02
So you still want to keep that density in mind.
02:05
And you also want to keep the direction in mind.
02:08
Again, the field line is going from north to south...