00:01
The question says, what do the smallest circle represent in each of those three diagram? so each of those small circles actually has n or s.
00:16
We call this a magnetic domain.
00:29
The second question, what figure shows a non -magnetic material? and use the concept magnetic domain to explain.
00:49
So in this case, figure a shows a non -magnetic material.
00:52
Magnetic material.
01:01
This is because the magnetic domain are randomly oriented in all directions.
01:48
They do not line up n and s they are randomly.
01:52
So some of them are and as this way, some others are as and you can see that they're random distributed or oriented in all direction.
02:08
The next question says that which one shows a magnetic material? this is going to be figure b.
02:31
And that is because you can see that they start to show align in one direction.
02:41
So the domains are sort of small, but they mostly align in one direction.
02:48
They start to create a net magnetic field.
02:52
So this is magnetic, it's magnetic materials.
02:57
So sometimes we could call it partially aligned...