00:01
Here we have to solve the following problem.
00:02
We have to determine the direction of the current in the loop.
00:07
So let's show what's going on in this system.
00:11
Let's first show the loop.
00:15
And the loop is being repelled to the left.
00:19
So it means that the magnetic force acts to the left.
00:25
Now let's show the magnet.
00:28
And it has two poles, north and south.
00:31
And now let's show the direction of the magnetic field.
00:37
So it comes out of north and comes into south.
00:44
So that's the direction of b.
00:52
Now let's use a right hand law to determine the direction of the current.
01:09
To do this we have to show how the field created by the magnet passes through the current.
01:16
Let's do this...