00:01
In order to show the diagram, in order to show the coil in the given problem, first of all, we need to show the core of this coil.
00:15
Here, this is the core of the coil, then over it.
00:19
We will show the winding of the coil.
00:23
Here, this is the sense of the winding of this coil in which the current.
00:33
Is entering from this end, i current here it is entering and then it is leaving the coil here at this right end.
00:48
The same current will be leaving.
00:50
So if we look for the sense of this current in the right end, the sense if we watch this coil from the right end, the sense of the current here is clockwise.
01:07
As the current here is clockwise, so this face of this coil, the right face of the coil will start behaving like a south pole.
01:22
Similarly, if we look for the sense of the current here at this left face, this sense of the current here is counterclockwise.
01:34
And as the current here is counterclockwise means this phase will start behaving like a north.
01:50
Now, we know the directions of magnetic field externally.
01:55
Magnetic field always comes out of a north pole and enters into the south pole externally.
02:05
And internally it always moves from south pole to north pole...